国产精品人人爱一区二区白浆_国产我不卡午夜伦理_免费电影亚洲一级黄片_国产午夜福利久久_51视频在线观看免费国产_天堂AV网手机版_国产精品毛片一区二_印度女人性液_日韩大片91免费观看视频播放_日本欧美国产精品第一页久久

手機(jī)版
1 2 3 4
首頁(yè) > 新聞中心 > 行業(yè)新聞 >
行業(yè)新聞

上海翻譯公司完成工程建筑類中英翻譯

發(fā)布時(shí)間：2019-02-13 17:17　　點(diǎn)擊：

上海翻譯公司完成工程建筑類中英翻譯
2.2 Design size, working system and product program 
2.2.1 Factory design size 
According to GSI entrustment, this project is designed on the basis of the production experience of similar refractory brick factories in China. Four sets of German brick machines have the output of 25t/h, annual finished refractory brick output of 12×104t and annual operation rate of 68.5%. 
2.2.2 Working system 上海翻譯公司
The workshop adopts continuous duty, i.e. three shifts a day and 8 hours a shift, with the operation rate of 68.5%, which is equivalent to the annual working days of 250 days of the host. 
2.2.3 Product program 上海翻譯公司
Refractory brick 12×104 t, magnesian gunning mix 4×104 t, high alumina castable material 1×104 t.上海翻譯公司
Finished brick baking temperature: 250℃.
2.3 Main technological process 
See Figure 1401RB01F01-01 for the workshop technological process.
The technological process is from the acceptance of the raw materials to the stacking of the finished bricks, including: raw material receiving facility and raw material system; magnesia loading and storage system; corundum loading and storage system; graphite powder loading and storage system; resin loading and storage system; additive loading and storage system; batching and transit system; mixing and discharge system; brickmaking system; drying system; workshop’s internal public auxiliary facilities; external pipelines, etc. The ventilation, dust removal, ash discharge, fire and other facilities are also provided. 
2.3.1 Raw material receiving facility and raw material system 
All raw materials are transported by the container truck to the production workshop, in which, the magnesia, corundum, graphite powder and additives are completely unloaded on the +1.2m discharging platform in the west of the production plant. The forklift is used for unloading. The bagged materials are transported from the container to the side edge of the plant on +1.2m platform and then transported by the forklift in the plant (+0.3m) to the designated storage area. 
2.3.2 Magnesia (corundum) loading and storage system 
The magnesia (corundum) raw materials are classified into four kinds, i.e. a kind of powder less than 200mesh and three kinds of granules of 0~1mm, 1~3mm and 3~6mm respectively. The materials are lifted by four sets of separate facilities to three corresponding storage bins for standby application. 
The bagged magnesia (corundum) is transported by the forklift to near the corresponding loading bin; the magnesia is lifted by the electric hoist using ground operation to right above the feeding bin and enters the storage bin through the feeding bin, motor vibration feeding machine (screw conveyer), bucket elevator and embedded scraper transporter. 
2.3.3 Graphite powder loading and storage system 
The graphite powder is lifted by a set of independent pneumatic transport facilities to three storage bins for standby application. 
The bagged graphite powder is transported by the forklift to the graphite delivery pump room, conveyed by the electric hoist to the delivery bin with the lower part connected with the pneumatic transport system and then sent to the graphite powder storage bin. The top of the bin is provided with a dust remover, which filters the dusty gas before discharge. The collected dust directly returns to the graphite bin. 
2.3.4 Binder loading and storage system 
The additive, adopting the liquid resin, is stored in two sets of 40-inch refrigerated containers. Before use, the resin tank must be taked out and placed in the designed area in the storehouse for preheating. 
The resin is transported by a set of indepdent facilities to five stainless steel weightlessness weighing storage bins above five mixing machines for standby application. 
2.3.5 Additive loading and storage system 
The additives, classified into 6 kinds of powder of less than 180mesh (Al, Si, Mg, SiC, BN, etc.), are lifted by a set of indepdent facilities to the six corresponding storage bins for standby application. 
The bagged additives are transported by the forklift to the terrace at the lifting hole position, lifted by the bridge crane adopting ground operation to right above the corresponding bins and enter the storage bin through the receiving hopper and valves. 
2.3.6 Batching and transit system
The magnesia (corundum), graphite powder, binders and additives are batched by the definite proportions according to the requirements of the metallurgical production for the chemical components of the refractory brick. 
In order to ensure accurate batching, it is designed to adopt single-row weight batching for the raw materials and the computer control system controls automatic batching. After weighing is completed, the trolley drives to the top of the designated mixing machine and adds the materials to the fixed bins and then returns to the receiving position. 
The rerolling hand feeding facilities for premixing are provided on +6.4m platform. 
2.3.7 Mixing and discharge system 
German EIRICH powerful mixer is adopted in this design. 
The top of each blender mixer is installed with four fixed bins and binder tanks. The materials are loaded into the blender mixers according to the process requirements and mixed thoroughly in the blender mixers. 
The evenly mixed materials are discharged from the bottom of the blender mixers to the transfer tank in the bottom and lifted by the travelling crane to the brick pressing station.
2.3.8 Brickmaking system
The brick machine adopts four complete sets of German LAEIS2000 hydraulic molding machines. 
The charging bucket lifted by the travelling crane places the mixture in the brick machine stock bin and the empty charging bucket lifts the electric flat carriage back and returns to below the blender mixer. 
The brick machine extrudes the bulk materials according to the set molds and parameters and complete a stacking of bricks through demold, sealing-tape machine, lifting platform and other facilities. 
2.3.9 Drying system
The pressed refractory bricks are stacked on the pallets. After stacking, the pallents are transported by the forklift to the drying kiln trolley. 
The filled drying kiln trolley is hauled by a winch to the electric heating curing kiln for drying and then dragged out from the drying kiln. The pallents are unloaded and the trolley returns empty. 
2.4 Material balance
The material balance is calculated by annual output of 120,000t refractory bricks, assuming that the proportion of magnesia (or corundum), graphite and additives in the mixture is 88:10:2; 
Table 2-2 Raw Material Consumption Table 
Item 
Name  Unit consumption 
(kg/t) Hourly consumption 
(t/h) Daily consumption 
(t/d) Annual consumption 
(t/a) Proportion 
(%)
Magnesia (corundum) 880 17.5 421 106656 88
Graphite powder  100 2 48 12120 10
Additive  20 0.4 9.6 2424 2
Resin  13.5 0.27 6.5 1636 1.35
2.5 Main workshop composition and configuration 
2.5.1 Raw material receiving facility and raw material system 
All raw materials are transported by the container truck to the production workshop, in which, the magnesia, corundum, graphite powder and additives are completely unloaded on the +1.2m discharging platform (rough and anti-skidding ground) in the west of the production plant. The forklift is used for unloading. The bagged materials (1.4t) are transported from the container to the side edge of the plant on +1.2m platform and then transported by the forklift in the plant (+0.3m) to the designated storage area (stacked for two layers and bag size of L900mm×W900mm×H1200mm). 
The plant is divided into 12 areas, 4 (3300t) for magnesia and corundum respectively, one (520t) for graphite powder, one (40t, 12m×6.5m in the northwest of the plant is independently isolated by containment and a 3m×3m door is provided) for pneumatic transport station and additives, one for resin pre-heating and one for resin pump station. 
With the plane axis dimensions of 100m×30m, the height of 8m, the ground heap load of 40kN/m2, single pitch and rough floor, the plant is averagely arranged with 6 exhaust fans on the roof and is divided into the stockpile area and forklift access. 
The maximum average flow rate of unloading, storage and loading transport is 500t/d; with the quantity of 8, the lifting height of greater than 1m and the rated load of 3t, the forklifts are directly purchased by the owner. 
The edge of the receiving platform is configured with the cylinder-driven bridge plate (riffled plate surface to prevent forklift skidding) to connect the container, so that the forklift can easily enter the container. 
The electric hoist track is arranged above the centerline of the receiver bins of all bagged materials and beneath the plant. The length of the side in the raw material warehouse shall be no less than7m and in the batching area is about 1.5m for easy installation and maintenance of the electric hoist. 
2.5.2 Magnesia (corundum) loading and storage system 
The magnesia (corundum) raw materials are classified into four kinds, i.e. a kind of powder less than 200mesh and three kinds of granules of 0~1mm, 1~3mm and 3~6mm respectively. The materials are lifted by four sets of separate facilities to three corresponding storage bins (effective volume of 13.8m3 and outlet of DN400) for standby application. 
The bagged magnesia (corundum) is transported by the forklift to near the corresponding loading bin; 2T electric hoist using ground operation (heavy duty system, effective operating stroke of the track of no less than 7m, length into the batching area of 1.5m and double speed for lifting and running) lifts the magnesia to right above the feeding bin; the discharge port with the diameter of 600mm at the bottom is manually opened, so that the materials can smoothly enter the 1.5m3 feeding bin (cone section with wear-resistant liner plate, dedusting interface DN200 and unloading level gage) in the bottom through the 800mm pipeline; the granules are evenly loaded to the bucket elevator through the motot vibration feeding machine (frequency conversion, width 600mm, length 1800mm, 80t/h) in the lower part of the stock bin and the powder is evenly loaded to the bucket elevator (TB315, hoisting height 22.58m, 52m3/h) through the screw conveyor (frequency conversion, width 400mm, length 2800mm, 80t/h) in the lower part of the stock bin; after lifting, the materials enter the embeddd scraper transpoter (FU350, 3 discharge ports) through the chute and then enter the storage bin. 
Stock bin dimamters: inner diameter 3000m, straight section height 3000mm, cone section height 2000mm and outlet DN400; bin material Q235, cone section liner plate material Hardox500.
The bin top is provided with DN600 manhole, DN100 dedusting port, DN400 receiving port and various instrument interfaces. 
Table 2-3 Magnesia and Corundum Stock Bin Volume 
Bin No. Material name Quantity  Unit volume
(m3) Total effective volume
(m3) Bulk density 
(t/m3) Total capacity 
(t)
1 3~6mm magnesia  3 18(13.8) 41.4 1.9 78
2 1~3mm magnesia  3 18(13.8) 41.4 1.7 70
3 0~1mm magnesia  3 18(13.8) 41.4 1.6 66
4 -200 magnesia  3 18(13.8) 41.4 1.5 62
5 3~6mm corundum  3 18(13.8) 41.4 2 83
6 1~3mm corundum  3 18(13.8) 41.4 1.8 74
7 0~1mm corundum  3 18(13.8) 41.4 1.7 70
8 -200 corundum 3 18(13.8) 41.4 1.5 62
The chute connected devices are provided with canvas for flexible connection. 
The filled bin can ensure feeding for 32 hours (batching 88%) at the maximum yield. 
2.5.3 Graphite powder loading and storage system 
As 100-200mesh powder, the graphite is lifted by a set of independent pneumatic transport facilities to four storage bins (effective volume 20m3 and outlet DN300) for standby application. 
The bagged graphite powder is transported by the forklift to the graphite delivery pump room located at E-F/4-6 axis and then lifted by 1.5T electric hoist using ground operation (heavy duty system, effective operating stroke of the track of no less than 7m and double speed for lifting and running) to right above the delivery bin; the discharge port with the diameter of 600mm at the bottom is manually opened, so that the materials can smoothly enter the 1.5m3 receiving hopper (oulet 250×250, with dedusting interface DN200 and unloading level gage) in the bottom through the 800mm pipeline; the bottom of the bin is provided with two impeller feeders, the above of which is controlled by frequency conversion and the bottom runs with regular frequency; the airflow from the Roots blower is mixed with the graphite powder through the injection valve and enters the graphit powder storage bin along DN125 transmission pipeline; three DN125 pneumatic three-way valves are provided at the end of the transmission pipeline and respectively connected to four stock bins; the top of the bin is provided with a dust remover, which filters the dusty gas before discharge. The collected dust directly returns to the graphite bin. 
The transmission pipeline must adopt seamless steel pipes with the elbow radius of no less than 2m. 
Stock bin dimamters: inner diameter 2,500m, straight section height 4,300mm, cone section height 2000mm and outlet DN300; bin material Q235.
The bin top is provided with DN600 manhole, roof scrubber, DN125 receiving port, DN500 explosion vent hole at the side and various instrument meters. 
Table 2-4 Graphite Powder Stock Bin Volume 
Bin No. Material name Quantity  Unit volume
(m3) Total effective volume
(m3) Bulk density 
(t/m3) Total capacity 
(t)
1 Graphite powder  4 25(20) 80 0.6 48
The filled bin can ensure feeding for 24 hours (batching 10%) at the maximum yield. 
2.5.4 Binder loading and storage system 
The additive, adopting the liquid resin, is stored in two sets of 40-inch refrigerated containers. The air conditioners (about 25kW) are installed in the containers to keep the temperature in the containers maintained at 5-10℃ (installed with thermocouple for temperature measurement and access to PLC system for real-time monitoring), so as to ensure that the shelf life of the resin is more than three months; the resin in two refrigerated containers is used in turn; before use, the resin tank must be taked out and placed in the designed area in the storehouse for preheating, so that it can be pumped to the weighing funnel above the mixer. The liquid resin temperature is required to be 20-50℃ during the transmission. The resin tank is handled and dumped (55°) by special machinery adopting pneumatic operation and the resin hopper volume is 1m3.
The resin is transported by two pumps to five stainless steel weighing storage bins (+6.4m, effective volume 1m3, oil medium electric heater and blender, inlet DN65, outlet DN50) above five mixers for standby application. 
The resin charging hopper is installed with oil medium electric heater and unloading level gage; the front and rear of each pump are provided with stainless steel manual ball valves; the inlet of the weighing bin is provided with two stainless steel electric ball valves (in parallel); the lower port of the weighing bin is provided a manual ball valve and two pneumatic ball valves (in series); the weightlessness weighing bucket adopts two-level safety thermostatic control and controls the material temperature at 50℃; the electric tracing stainless steel pipe (DN50) is used to connect to the mixer. 
The hopper and transmission pipeline are made of stainless steel and the transmission pipeline has the diameter of DN65 and electric tracing. 
Three resin pumps are designed. The resin pump area is provided with 500mm deep concrete pit, which is filled with wood flour or waste debris and the surface is laid with steel grating platform. 
The filled charging bucket can ensure feeding for 22 hours (batching 1.35%) at the maximum yield. 
2.5.5 Additive loading and storage system 
The additives, classified into 6 kinds of powder of less than 180mesh (Al, Si, Mg, SiC, BN, etc.), are lifted by a set of indepdent facilities to the six corresponding storage bins (effective volume of 3.4m3 and outlet of DN250) for standby application. 
The bagged additives are transported by the forklift to the terrace at the lifting hole position located at G-H/8-9 axis and lifted by 2T bridge crane (heavy duty system, Lk5.5m, H=24m and double speed for lifting and running) adopting ground operation to right above the corresponding bins; the discharge port with the diameter of 600mm at the bottom is manually opened, so that the materials can enter the 4.2m3 storage bin through 800mm pipeline funnel and DN400 pneumatic butterfly valve. 
The bin of this system is made of stainless steel; the storage bin is provided D250 broken arch helix (corotation and reversal available), DN400 explosion vent hole and various instrument interfaces.
Stock bin dimamters: inner diameter 1,250m, straight section height 3,000mm, cone section height 1,000mm and outlet DN250.
Table 2-5 Additive Stock Bin Volume
Bin No. Material name Quantity  Unit volume
(m3) Total effective volume
(m3) Bulk density 
(t/m3) Total capacity 
(t)
1 Additive  6 4.2(3.5) 21 1.2(Al) 25
The filled bin can ensure feeding for 62 hours (batching 2%) at the maximum yield. 
2.5.6 Batching and transit system
The magnesia (corundum), graphite powder, binders and additives are distributed by the definite proportions according to the requirements of the metallurgical production for the chemical components of the refractory brick. 
The maximum output of the mixed material is 500t/d. Assuming that the mixing loss is 1%, the total amount to be batched is 505t/d. 
Assuming: (1) The yield ratio of MC: MAC: AMC is 80:10:10; (2) average mixing weight each time is 2.05t; (3) the proportion of magnesia (or corundum), graphite and additives in the mixture is 88:10:2; then the number of batching batches to be required each day is 246. 
Based on 90% (220 batches) of the maximum output and 22 working hours a day, 10 batches of batching are required per hour, that is, the average batching time is 6 minutes (including the time to and from the blender mixer). 
In order to ensure accurate batching, it is designed to adopt single-row weight batching for the raw materials and the computer control system controls automatic batching. Wherein: the magnesia (corundum) granules are batched by variable frequency vibration feeder (impeller feeder) and electronic tape batching scale (frequency conversion, corotation and reversal); the magnesia (corundum) powder is batched by variable frequency screw feeder (impeller feeder) and electronic tape batching scale (frequency conversion, corotation and reversal); the graphite powder and additives are batched by variable frequency screw conveyor and weighing bin; the liquid resin is charged by fixed weightlessness weighing tank and directly added to the mixer. Where: the graphite power and additives can be pre-weighed and loaded after the trolley is in place; the magnesia and corundum (four materials respectively) must be weighed after the trolley is in place. After weighing is completed, the trolley drives to the top of the designated mixer and adds the materials to the fixed bins and then returns to the receiving position. 
The weighing trolley is provided with four weighing funnels, respectively, 1.5m3 for granules, 1.5m for powder, 1m3 for graphite powder and 1m3 for additives; the trolley has an air compressor, a small dust remover and electric control cabinet; the position control is composed of the laser range finder, position switch and variable frequency drive unit; the maximum operating speed is 60m/min. 
The weighing trolley is equipped with soft tow connection, including power cable (10kW) and network bus. 
The rerolling hand feeding hopper for premixing and a 2t electric hoist lifting facility are provided on +6.4m platform. 
2.5.7 Mixing and discharge system 
Five blender mixers are provided according to the output requirements, with the average batch output of 2.05t and mixing time of 24 minutes per unit. 
German EIRICH powerful mixers are adopted in this design: two with the model of DE18 are installed in positions 1# and 5# and three with the model of DE22 are installed in the middle. 
Four fixed stock bins (stainless steel, installed with low-speed vibrator to prevent material sticking) are installed above each blender mixer to carry four materials from the transport and weighing trolley and then the materials are loaded in the blender mixer according to the mixture process requirements; the binder is added to the blender mixer from the weightlessness weighing tank on +6.4m platform. 
The evenly mixed materials are discharged from the bottom of the blender mixers to the transfer tank in the bottom; the tank is placed on the electric flat carriage; after the discharge valve ay the bottom of the blender mixer is closed, the trolley starts and pulls the material tank out from the mixing platform and then the material is lifted by a 5t travelling crane (A8) to the brick pressing station. 
The trolley is powered by the trolley conductors. 
Near 4# brick machine is arranged a transport bracket is arranged, below which is provided with ton bags and bracket to accept the mixture from the transport tank and can be carried away by forklift. 
The plant, covering an area of 35m*14.5m, is divided into six layers with the elevation of -2.8m, +0.3m, +6.4m, +10.3m, +15.3m and +19.3m respectively, wherein, +10.3m platform adopts concrete floor, the roofing is +24.0m and the column is of encased structure. 
The mixer foundation is subject to ground pouring. 
2.5.8 Brickmaking system
The brick machine adopts complete sets of German LAEIS2000 hydraulic molding machines. 
2.5T charging bucket lifted by the 5T travelling crane is placed on the receiving bracket with brick machine and places the mixture in the brick machine stock bin. The empty charging bucket lifts the electric flat carriage back and returns to below the blender mixer. 
The brick machine extrudes the bulk materials according to the set molds and parameters and complete a stacking of bricks through demold, sealing-tape machine, lifting platform and other facilities. 
Single-layer plant of 35m*25m; roof eave elevation of +12.0m; two 5t travelling cranes (A6, double-beam bridge crane) and 16t (A3) secondary hook, Lk=23.5m; floor load of 30kN/m2.
2.5.9 Drying system
The maximum daily brick pressure formation capacity is 500t; six low-temperature (250℃) drying kilns are provided, each with 8 trolleys; trolley size: four 1400*1000 pallets with the stack height of 600mm; so the output of a cycle of 6 kilns is 6*8*4*0.84m³/pallet =6*8*4*2.52t/pallet=6*8*10.08 t/trolley =6*80.64t =483.4t; 
The expected drying cycle is 16 hours (including 2 hours for loading and unloading), so the daily output of 6 kilns is 24/16*483.4t=645.12t, meeting the production needs. 
The pressed refractory bricks are stacked on the pallets. After stacking, the pallents are transported by the forklift to the drying kiln trolley. 
Eight filled drying kiln trolleys are hauled by the winch to the drying kiln; close the furnace door; the drying kiln program is controlled by PLC. After drying, the geen signal light flashes to confirm; open the furnace door; the trolleys are dragged out from the drying kiln. The pallents are unloaded and the trolleys return empty. 
With the length of about 18m, the inner width of about 2m and the inner height of about 2.4m, the drying kiln is divided into four segments, each provided with 2 sets of 30KW electric heating devices; 
The side wall of the kiln shall be lined by the rock wool of at least 350mm thick and use color-coated sheets. The inner wall is coated with zinc; 
The resistance wire in the ceramic tube, as the heating element, is of simple structure and achieves electronic control through the thyristors. 
The drying kiln consists of four segments connected through high-temperature seal joints, which shall be flexible to withstand the structural expansion during heating. 
The door orbit is U-shaped girder, both sides of which are installed with short-stroke cylinders to open and close the door and the rear side of which is provided with high-temperature sealing to ensure good seal of the door and to avoid smoke escape during equipment operation. 
The top of the drying kiln is provided with two discharge points 2m from the door. The exhaust gas is discharged to the chimney through the two discharge points and guided to the mushroom-shaped ventilation opening at the workshop roof. Inside the chimney is provided with the manual flap valve. 
After cooling, the finished bricks are packaged and stacked for 2.7m high and the floor load is 80kN/m2.
The single-layer plant covers an area of 49m*35m with the roof eave elevation of +8.0m. 
2.6 Equipment selection requirements 
Motor and gearbox: SEW or Siemens
Electrical elements: Siemens
Clutch: Flender
Ball bearing: SKF or FAG
Ball bearing bush: SKF or FAG, with Nilos shaft filler washer; 
Anti-wear guard plate: Hardox 400 or 500
Anti-wear screw conveyor:  Vautid 100 or Contex Liners
Pneumatic conveying rotary valve: WAM Torex RV or similar products 
Pneumatic transmission diverging three-way valve:  WAM Torex RV or similar products
Fast-switch electric pneumatic valve:  EBRO Z 011-A or Chinese imitations
Laser guidance system: Sick
Proximity switch: Schmersal or Turk
 
3. General Layout & Transportation 
3.1 Overview 
Hot Rock project of Glauch Systems Industry W.L.L. in Doha is located in the southeast of Doha Mesaieed and close to Mesaieed Industrial Rd. Geographic coordinates: latitude: 25°15′N, longitude: 51°34′E. 
Doha, located in Arabian Peninsula in Arabian Gulf with subtropical arid climate, is almost sunny year-round and less cloudy; the average temperature from May to September exceeds 30℃ and often reaches 40℃. Scarce rainfall mostly appears from October to March; low temperature in winter nighttime can drop to below 10℃; the average sunshine time is 9.5h. 
Meteorological conditions
(1) Temperature
Highest: 42°C
Lowest: 10°C
Average temperature: 17-35℃
(2) Humidity
Maximum: 88%
Minimum: 20%
(3) Precipitation 
Annual average: 98mm
(4) Wind direction and wind speed
Predominant wind direction: north wind and northeaster 
Maximum wind speed: 35km/h
Average wind speed: 8-25km/h
(5) Seismic data 
No earthquake 
Designed on the basis of minimum requirements in China’s national standards 
3.2 Plane design 
Meet the reasonable requirements of production technology process and logistics; 
The production workshops with the annual output of 120,000t refractory bricks mainly include raw material receptacle trough, forwarding station, raw material warehouse and batching room, fuel and flux crushing room, flux screening room, primary mixer room, secondary mixer room, sintering main plant and ring cooler platform, expanding dust remover, electric precipitator, main exhaust fan room, tail dust remover, power transformation and distribution room and water pump house. 
3.3 Vertical design 
The project site is designed to be of tiny slope style. The indoor and outdoor design altitude difference of the buildings and structures is 0.30m; the road elevation is 0.00m (equivalent to local absolute elevation of +0.80m); the indoor design floor elevation is +0.30m (equivalent to local absolute elevation of +1.10m).
3.5 Pipeline design 
The pipelines in the region include water supply pipes, drainage pipes, power cables and communication cables. 
The cables and pipes before entering the plant are laid in the trenches. 
 
4. Dust Removal by Ventilation and Heating Power
4.1 Design basis 
(1) Local meteorological data and guiding ideology for the designer provided by the construction party; 
(2) Entrustment assignment provided by technology specialty and other relevant specialties. 
4.2 Dust removal by ventilation 
To prevent environmental pollution, improve workers’ operating environment, extend the equipment life and avoid waste of raw materials, the charging holes and dust points are provided with dedusting ducts in this design to collect the dust in the bag-type dust removers for purification before emission. The dust content for flue gas emission is less than 30mg/m3.
The dust removal system is composed of the ventilation duct, regulating valve, bag-type dust remover, induced draft fan and chimney. To reduce fan operation noise, the use of low noise devices has been considered during fan model selection in the design and the dust removal pipelines are subject to flexible connection with the dedusting equipment and fans. 
The plant is provided with roof fans. 
4.2.1 Magnesia (corundum) dust removal
4.2.1.1 Dust source 
    The dust points at the magnesia (corundum) loading and charging bin ports, conveying equipment, chutes and bin negative pressure demands are concentrated in the respective dust removal system of magnesia and corundum for treatment. The dust recovered by this system is raw material dust with recovery value. The discharge of the dust bin directly enters the corresponding powder bin. 4.2.1.2 Air distribution 
After calculation, the dust extraction points and their air distribution are as follows: 
a. Charging bin inlet: 4 points, each 1800m3/h, interface DN200
b. Bucket elevator inlet: 4 points, 400m3/h, interface DN100
c. Bucket elevator outlet: 4 points, 400m3/h, interface DN100
d. Storage bin: 4 points, 400m3/h, interface DN100
e. Weighing tape machine: 1 point, 1800m3/h, interface DN200
4.2.1.3 Design parameters of magnesia (corundum) dust removal system 
(1) Determination of system air volume 
Total air volume: Q0=12000+1800m3/h
Working coefficient: 0.75, then the dedusting air volume is 
Q=12000*0.75+1800=10800 m3/h
(2) System design flue gas temperature: 10℃～50℃
(3) Maximum dust content at system design flue gas inlet: ~7.5g/m3
(4) System design pressure loss: 2000Pa
 4.2.1 Magnesia (corundum) dust removal program 
An LNGM54-72 (reference model, 1.1kW) pulsed jet cloth filter with the maximum air volume of ~12960m3/h and the total dust removal efficiency of η＞99.5% is adopted for the loading of magnesia and corundum. After the dust removal, the emission concentration CP is 50mg/m3, meeting the environmental protection requirements of dust emission. 
The basic performance of the dust remover in the design is required as follow:
(1) Flue gas processing capacity ~12960m3/h
(2) Flue gas processing temperature 10℃～50℃
(3) Initial dust content of flue gas ＜7.5g/m3
(4) Flue gas emission concentration after processing ＜50mg/m3
(5) Dust remover resistance loss ＜1500Pa
(6) Dust remover working pressure -3000Pa
(7) Dust remover air leakage rate ＜2％
(8) Comprehensive dust collection efficiency of dust remover ＞99.6％
The dust remover is arranged on +19.3m platform and the cindervalve discharges the ash regularly. The fly ash is transported by the screw conveyor and impeller feeder for recycling, effectively inhibiting the secondary pollution of the dust. 
According to the air volume and air pressure requirements of the system, the fan is selected with the model of 4-72-12№5A, r=2900r/min, air volume of 11830m3/h and full pressure of 2844Pa and the matching motor is Y160M2-2 with N=15kW.
4.2.2 Graphite dust removal 
4.2.2.1 Dust source 
Dust points at the graphite loading and charging bin ports. The dust recovered by this system is raw material dust with recovery value. The discharge of the dust bin directly enters the corresponding powder bin. 
4.2.2.2 Air distribution 
The dust extraction points and their air distribution are as follows: 
Charging bin inlet: 1 point, 1800m3/h, interface DN200
4.2.2.3 Design parameters of graphite dust removal system
(1) Determination of system air volume 
Total air volume: Q0=1800m3/h
(2) System design flue gas temperature: 10℃～50℃
(3) Maximum dust content at system design flue gas inlet: ~7.5g/m3
(4) System design pressure loss: 1500Pa
 4.2.2.4 Graphite dust removal scheme
An LNGM18-24 (reference model, 1.1kW) pulsed jet cloth filter with the maximum air volume of ~4320m3/h and the total dust removal efficiency of η＞99.5% is adopted for the loading of graphite. After the dust removal, the emission concentration CP is 50mg/m3, meeting the environmental protection requirements of dust emission. 
The basic performance of the dust remover in the design is required as follow:
(1) Flue gas processing capacity ~4320m3/h
(2) Flue gas processing temperature 10℃～50℃
(3) Initial dust content of flue gas ＜7.5g/m3
(4) Flue gas emission concentration after processing ＜50mg/m3
(5) Dust remover resistance loss ＜1500Pa
(6) Dust remover working pressure -3000Pa
(7) Dust remover air leakage rate ＜2％
(8) Comprehensive dust collection efficiency of dust remover ＞99.6％
The dust remover is arranged beside the graphite charging bin and the cindervalve discharges the ash regularly. The fly ash is transported by the impeller feeder to the charging bin for recycling. 
According to the air volume and air pressure requirements of the system, the fan is selected with the model of 4-72-12№4A, r=2900r/min, air volume of 4020m3/h and full pressure of 2040Pa and the matching motor is Y132M2-2with N=5.5kW.
4.2.2.5 Dust collection of graphite storage bin 
The graphite storage bin is provided with separate roof bag-type dust removers (three sets, no ash discharge equipment), belonging to the equipment necessary for the process without induced draft fan (preferably with a fan to ensure bin negative pressure and prevent graphite powder leakage). Gas displacement 1000m3/h; dust content: 20g/m3.PL-1100/B stand-alone dust remover with the fikter area of 7m2, the processing air volume of 1100m3/h and the dust removal efficiency η of greater than 99.5% is selected in the design. Based on the maximum dust content of 20g/m3 at the inlet, the emission concentration is less than 100mg/m3 after dust removal and the fly ash is recycled to the quick lime bin. 
4.2.3 Additive dust removal
4.2.3.1 Dust source 
Dust points at the additive charging ports. 
4.2.3.2 Air distribution 
The dust extraction points and their air distribution are as follows: 
Charging bin inlet: 6 points, each point 1800m3/h, interface DN200
4.2.3.3 Design parameters of additive dust removal system
(1) Determination of system air volume 
Considering that the air leakage rate is 20%, the total dedusting air volume is Q0=2160m3/h
(2) System design flue gas temperature: 10℃～50℃
(3) Maximum dust content at system design flue gas inlet: ~7.5g/m3
(4) System design pressure loss: 1500Pa
 4.2.3.4 Additive dust removal scheme
An LNGM18-24 (reference model) pulsed jet cloth filter with the maximum air volume of ~4320m3/h and the total dust removal efficiency of η＞99.5% is adopted for the loading of additives. After the dust removal, the emission concentration CP is 50mg/m3, meeting the environmental protection requirements of dust emission. 
The basic performance of the dust remover in the design is required as follow:
(1) Flue gas processing capacity ~4320m3/h
(2) Flue gas processing temperature 10℃～50℃
(3) Initial dust content of flue gas ＜7.5g/m3
(4) Flue gas emission concentration after processing ＜50mg/m3
(5) Dust remover resistance loss ＜1500Pa
(6) Dust remover working pressure -3000Pa
(7) Dust remover air leakage rate ＜2％
(8) Comprehensive dust collection efficiency of dust remover ＞99.6％
The dust remover is arranged on +19.3m platform and the cindervalve discharges the ash regularly. The dust recovered by this system has complex ingredients and cannot be directly recycled. The dust bin discharge enters the ton bags on +0.3m terrace through the chute and transported outward. 
According to the air volume and air pressure requirements of the system, the fan is selected with the model of 4-72-12№4A, r=2900r/min, air volume of 4020m3/h and full pressure of 2040Pa and the matching motor is Y132M2-2with N=5.5kW.
4.2.4 Mixed material dust removal 
4.2.4.1 Dust source 
Maintain the negative pressure needs of the blender mixer. 
4.2.4.2 Air distribution 
The dust extraction points and their air distribution are as follows: 
Exhausted enclosure of blender mixer: 5 points, each 2000m3/h, interface DN200
4.2.4.3 Design parameters of mixed material dust removal system
(1) Determination of system air volume 
Total air volume: Q0=10000m3/h
Considering the air leakage rate of 10% and the working coefficient of 1, the dedusting air volume Q is 11000 m3/h.
(2) System design flue gas temperature: 40℃～60℃
(3) Maximum dust content at system design flue gas inlet: ~7.5g/m3
(4) System design pressure loss: 2000Pa
 4.2.4.4 Mixed material dust removal scheme
An LNGM54-72 (reference model, 1.1kW) pulsed jet cloth filter with the maximum air volume of ~12960m3/h and the total dust removal efficiency of η＞99.5% is adopted for the loading of magnesia and corundum. After the dust removal, the emission concentration CP is 50mg/m3, meeting the environmental protection requirements of dust emission. 
The basic performance of the dust remover in the design is required as follow:
(1) Flue gas processing capacity ~12960m3/h
(2) Flue gas processing temperature 10℃～50℃
(3) Initial dust content of flue gas ＜7.5g/m3
(4) Flue gas emission concentration after processing ＜50mg/m3
(5) Dust remover resistance loss ＜1500Pa
(6) Dust remover working pressure -3000Pa
(7) Dust remover air leakage rate ＜2％
(8) Comprehensive dust collection efficiency of dust remover ＞99.6％
The dust remover is arranged on +19.3m platform and the cindervalve discharges the ash regularly. The fly ash is transported by the screw conveyor and impeller feeder to the ton bags on +0.3m terrace for outward transport. 
According to the air volume and air pressure requirements of the system, the fan is selected with the model of 4-72-12№5A, r=2900r/min, air volume of 11830m3/h and full pressure of 2844Pa and the matching motor is Y160M2-2 with N=15kW.
The branch pipe of each dust removal point is equipped with a pneumatic butterfly valve, which is interlocked with the mixer. 
4.2.5 Environmental cleanup dust remover 
A small dust remover LNGM18-24 (reference model) is provided and the suction pipes are provided at each layer of platform. Two fast ports are provided at each layer of platform for platform cleaning. The dedusting air volume is 500m3/h. The induced draft fan is installed on the dust remover and the fly ash is discharged into the ton bags on +0.30m terrace for outward transport (recommended in combination with the additive dust remover). 
The maximum processing air volume is ~4320m3/h and the total dust removal efficiency η is greater than 99.5%. After the dust removal, the emission concentration CP is 50mg/m3, meeting the environmental protection requirements of dust emission. 
The dust remover is arranged on +19.3m platform and the cindervalve discharges the ash regularly. The dust recovered by this system has complex ingredients and cannot be directly recycled. The dust bin discharge enters the ton bags on +0.3m terrace through the chute and transported outward. 
According to the air volume and air pressure requirements of the system, the fan is selected with the model of 4-72-12№4A, r=2900r/min, air volume of 4020m3/h and full pressure of 2040Pa and the matching motor is Y132M2-2with N=5.5kW.
4.2.7 Main plant ventilation
In order to improve the operating environment of workers and maintain the plant ventilation and production gas emission, each plant is provided with roof exhaust fans and the windows are provided with air inlet filter layers. 
The roof fan has the model of DWT-II-No.10, the power of 11kW, the exhaust air volume of 31436m3/h· unit and the full pressure of 702Pa.
(1) The raw material warehouse is evenly arranged with 6 roof fans on the centerline of the plant; 
(2) The batching plant is arranged with 7 roof fans in the cross-shaped form; 
(3) The brick machine plant is arranged with a total of 4 roof fans right above four brick machines. 
(4) A roof fan is arranged right above the center of each drying kiln, totaling 6 fans. 
4.3 Compressed air supply 
4.3.1 Compressed air users 
The compressed air users in the production workshop include the bag-type dust removal system and pneumatic valve drive. The respective use requirements are as follows: 
Table 4-1 Compressed Air Consumption Statistical Table 
No. User name  Air pressure 
MPa Consumption 
m3/min Air quality  Use system Remark 
1 Bag filter for magnesia loading  ～0.6 0.7 No oil, water and dust Intermittent 
2 Bag filter for corundum loading  ～0.6 0.7 No oil, water and dust Intermittent 
3 Bag filter for graphite loading  ～0.6 0.2 No oil, water and dust Intermittent 
4 Graphite storage bin roof dust remover  ～0.6 1.2 No oil, water and dust Intermittent  Three sets
5 Dust remover for  additive charging  ～0.6 0.3 No oil, water and dust Intermittent 
6 Mixed material dust remover  ～0.6 0.7 No oil, water and dust Intermittent 
7 Environmental dust remover  ～0.6 0.3 No oil, water and dust Intermittent 
8 Air for pneumatic valve  0.4～0.5 0.2 No oil, water and dust Intermittent 
9 Air for resin skip car ～0.6 0.1 No oil, water and dust Intermittent 
10 Air for brick machine oil injection ～0.6 0.3 No oil, water and dust Continuous 
11 Air for drying kiln door  0.4～0.5 0.2 No oil, water and dust Intermittent 
4.9
 
According to the technical agreement requirements, the compressed air is transported by box-type air compressors and pipelines to the air points. 
4.3.2 Compressed air quality 
The cleaned compressed air is used, with the specific requirements as follows: 
Solid particles: level 2, maximum particle size of 1μm and maximum concentration of 1mg/m3;
Water content: level 3, maximum pressure dew point of -20℃; (water vapor content is expressed by pressure dew point)
Oil content: level 3, maximum oil content (including oil drops, suspended particles and oil vapor) 1 mg/m3;
(The above data is extracted from GB/T13277 Compressed Air for General Use – Quality Classes) 
4.3.3 Air compressor and piping layout 
The complete set of oil-free screw compressor (reference model SA30A, Taiwan) is used; compressor parameters of 5.2m3/min and 0.75MPa, motor of 30kW; overall size of 1000mm (L)x1330mm(W)x1300mm(H); a total of 3 compressors are purchased, with 2 installed on-site and one stored in the warehouse for standby application. 
Two air compressors are arranged on +0.3m terrace. 
DN150 compressed air pipes are provided at the edge of each layer of platform and connected through up and down; the pipes are configured at the user points according to air flow requirements and the ends are provided with manual ball valves and ferrule quick couplings; the branch pipes are provided with FRL; the nylon tubes and quick couplings are used for the connection of the cylinders; the air compressor is connected with the header pipe by the metal hose with cutting-off ball valve. 
 
5. Water Supply and Drainage 
5.1 Overview 
5.1.1 Design basis 
(1) Design technical agreement.
(2) Design commission data provided by relevant specialties. 
5.1.2 Design scope 
The design scope covers the circulating water facilities and sewage treatment facilities corresponding to the production and living of the new refractory brick project. 
5.1.3 Water source 
The production and domestic water sources meeting the requirements are transported by GSI to the production workshop. 
(1) Production new waterpipe joint diameter of DN20, flow rate Q=0.2m3/h (average) and pressure P=0.35MPa.
(2) Domestic waterpipe joint diameter of DN25, flow rate Q=1m3/h and pressure P=0.40MPa. GSI provides the domestic water sources meeting sanitary standard for drinking water. 
5.2 Design water consumption and water requirements 
5.2.1 Production water consumption 
Production water consumption is shown in Table 5-1. 
Table 5-1 Production Water Consumption
No. User name  Water consumption (m3/h) Water quality  Pressure 
(MPa) Temperature 
(℃) Water system  Remark 
1 Brick machine  24 Clean circulating water  0.6 ≤35 Continuous  Circulating 
 
Note: The pressure in Table 5-2 is required at the user points. 
According to the requirements of water users for the water volume, water quality, water pressure and water temperature and through water balance: 
(1) Water recirculation rate of clean circulating water: 24m3/h
(2) Makeup water amount of circulating cooling system: 0.2m3/h
(3) Repeating utilization factor of production water: 100%
     Cooling water circulation rate: 99%
(4) Domestic water consumption: 1m3/h
5.2.2 Water quality requirements of circulating cooling water
The water quality requirements of circulating cooling water are shown in Table 5-2. 
Table 5-2 Water Quality Requirements of Circulating Water
No. Item  Unit  Clean circulating water  Turbid circulating water Remark 
1 PH value 7~8.5 7~9
2 Suspended solid content mg/L ≤10 ≤20
3 Particle size of suspended solids mm ≤0.2 ≤0.2
4 Total hardness 
(Calculated by CaCO3) dH ≤10 ≤12
5 Alkalinity  mg/L(CaCO3) ＜60 ＜200
6 Chloridion  mg/L(C1-) ＜60 ＜100
7 Sulfate ion  mg/L(SO42-) ＜100 ＜250
8 Total iron  mg/L(Fe) ≤0.5 ≤1
9 Conductivity  μs/cm ＜600 ＜1000
10 Oil  mg/L 0 ≤5
5.3 Water supply and drainage system 
According to the water consumption and water requirements of the process equipment, the water supply and drainage system in this design is classified into production clean circulating system, domestic water supply and drainage systems. 
See the flowchart for the water supply and drainage system. 
5.3.1 Clean circulating water system 
The system mainly solves the indirect cooling water with the maximu water volume of 24m3/h of the brick machines. The return water quality of the cooling water is not polluted and only the water temperature rises. The warm water with pressure flows back to the hot water tank (25m3, makeup water pipe DN20) and the warm water returns to the water tank after being cooled by the air-cooled water chiller. The water temperature drops to the user requirements; the water in the water tank is pumped to the user points. The water of this system is replenished by production new water pipe network with the water makeup rate of 0.2m3/h (average). 
5.3.2 Fire water supply system
Uniformly considered by GSI. 
5.3.5 Drainage system
The production workshop has no production sewage discharged outward. 
A small amount of hand washing sink drainage is discharged to the sewage treatment system. 
5.4 Control mode of water supply and drainage facilities
(1) All pump sets in the circulating water pump house are subject to centralized control by the distribution room and on-site operation. An alarm is given and the standby pump automatically switches in case of working pump failure of each group of water pump. 
(2) The clean circulating hot water tank is provided with a liquid level meter, which gives high and low level alarm through PLC and is interlocked with the inlet water valve to maintain the circulating water volume. 
(3) Three ZYAL-100 water coolers with the refrigerating capacity of 246kW divided into 100%-75%-50%-25% four-level control are used for cooling water circulation. 
(4) The outlet header pipes of three clean circulating water feed pump sets (12m3/h, 0.6MPa) are subject to temperature and pressure data large collection and display; the branch pipes of the brick machine are subject to flow data collection and display (in master control room). 
5.5 Pipe installation 
5.5.1 Pipes and interfaces 
The feed pipes, fire water pipes and drainage pipes with the DN of greater than 50mm in the sintering workshop are welded or flange-connected by welded steel tubes. Those with DN of not greater than 50mm are subject to threaded connection by galvanized steel pipes. 
The domestic water pipes are subject to threaded connection by galvanized steel pipes. 
5.5.2 Pipeline anticorrosion 
The steel pipes subject to exposed installation in the workshop are derusted and brushed with minium twice and green finishing coat twice; the buried steel pipes are derusted, brushed with cold primer oil once, bituminous coating once and coated with a layer of protective cover. 
5.5.3 Pipe laying method 
The water pipes are laid in pipe ditches. 
5.6 Main equipment selection 
Three sets of clean circulating water feed pumps with the performance of Q＝12m3/h, H＝60m, N＝7.5KW, voltage of 415V and frequency of 50Hz are provided in the water pump house, two for use and one for standby. 
Three water coolers with the model of ZYAL-100, refrigerating capacity of 246kW, power of 90kW, voltage of 415V and frequency of 50Hz are provided in the cold water system.  
6. Electric 
6.1 Design basis and scope 
6.1.1 Design basis 
(1) IEC standards and China’s relevant national standards; 
(2) Materials provided by other related specialties. 
(3) Appendixes to the contract. 
6.1.2 Design scope 
The electrical design scope in this project includes the electrical power supply and distribution, drive control, lightingand lightning protection design of raw material receiving facility and raw material system; magnesia loading and storage system; corundum loading and storage system; graphite powder loading and storage system; resin loading and storage system; additive loading and storage system; distributing and transit system; mixing and discharge system; brickmaking system; drying system and other subitems. Electrical pipeline and network design in the plant and workshop
6.2 Power supply 
6.2.1 Power and voltage 
The workshops have third-class load and the single circuit power supply can meet the requirements. GSI is responsible for providing 415V power to the low voltage distribution room of the transformer room for low voltage power utilization of the whole workshop. The transformers are not allowed to run in parallel. 
Three transformers, each 1600kW.   
Power supply and distribution voltage class 415V/240V 50Hz. 
Control voltage class 240V 50Hz. 
6.2.2 Workshop load, power factors and power consumption (see load calculation table) 
According to the electricity data provided by all specialties and the demand coefficient method, the load is calculated as: 
The total installed capacity (low voltage part) of the electric equipment in the design scope is kW. 
(1) Load calculated before compensation: (low voltage part) 
Active power: P30＝1359.6kW
Reactive power: Q30＝1284.5kvar
Apparent power: S30＝1870.4kVA
Power factor: CosΦ＝0.727
(2) Load calculated after compensation: (low voltage part) 
Active power: P30=1359.6kW
Reactive power: Q30＝384.5kvar
Apparent power: S30＝1413kVA
Power factor: CosΦ＝0.962
(4) Annual power consumption: 13.9×106 kWh/year
(5) Unit power consumption: 29.6kWh/t-s
(6) The low voltage side in the workshop adopts capacitance compensation with the compensation capacity of kvar; the capacitance compensation at the high voltage side is conducted by the user in the superior substation to meet the local requirements. 
6.3 Power supply and distribution system 
GSI is responsible for high voltage distribution and transformers and provides 415V/240V 50HZ power. 
The low voltage distribution room in the workshop substation provides power for all low voltage systems in the emanant mode; then the systems distribute power to the nearby electrical equipment through the low voltage distribution board. 
6.3.1 Main equipment and components selection 
Low voltage distribution board       
Low-voltage reactive compensation board   
Control console    JT2 type 
On-site operation box   JX(F)3 type 
The low voltage components are mainly manufactured by Siemens, PLC by Siemens and frequency converters by Fuji. For other equipment, see main electrical equipment list. 
6.3.3 Measurement 
The electric power meter is installed on the low voltage outgoing line switch cabinet in the substation for electric power measurement of the whole workshop. 
6.4 Electric drive and control 
6.4.1 Electric drive 
The equipment with interlocking requirements on the production line is electrically controlled by PLC, which mainly achieves normal start and stop of the equipment and the output of associated measurement and control signals according to the equipment operation requirements and is closely integrated with the instrument control to achieve EIC integration. The dust removal system is controlled by PLC with the same type of the process system and subject to centralized operation in the master control room. The control system has three forms, i.e. centralized interlocking, on-site partial interlocking and interlocking release; the operating modes include centralized operation and on-site operation; the adjustable-speed motor is subject to speed control by the frequency converter. The low voltage motor with large capacity is started by soft starting equipment. 
6.4.2 Computer system configuration 
Three DELL PCs are used. The QC room of the main plant is provided with a workstation for centralized operation and is reserved with the communication interface of high-level network. PLC IO is set in the electrical control room, as shown in the computer system configuration diagram. PLC adopts SIMATIC S7-400 series. The control system has redundant CPU. In case of failure of a CPU, the other CPU will continue to work. 
6.5 Electrical pipeline installation 
The electrical pipelines in the workshop are laid along the bridges or cable trenches as far as possible and shall be subject to hidden laying along the floor, wall and floor slabs as far as possible in case of no bridges or cable trenches. If hidden laying is not available, the cable (wire) through pipe is used for exposed laying. 
6.6 Electrical lighting and lightning protection 
6.6.1 Electrical lighting 
According to the illuminance standards required in the regulations, the energy-saving metal halide lamps are used in large plants for lighting and other lamps are generally fluorescent lamps and incandescent lamps with the voltage of AC240V. Key sectors shall be provided with a small amount of emergency lamps. 
The centralized control by district is combined with local control. 
6.6.2 Lightning protection and grounding 
Annual thunder days are 10 days. 
The plant workshops are provided with lightning protection facilities with the grounding resistance of no greater than 10Ω by class III buildings and structures. A set of grounding devices with the grounding resistance of no greater than 1Ω is shared for the operation and protection of the electrical devices. 
6.7 Monitoring TV 
The production master control room is provided with two large-screen monitors: one multi-screen display and one single-screen with auto flip. 
Camera layout points: 
(1) Monitor the raw material discharging platform, 2 sets; 
(2) Monitor the magnesia and corundum charging area, 2 sets; 
(3) Monitor +19.3m additive bin area, 1 set; 
(4) Monitor the operation section of the weighing car, 2 sets; 
(5) Monitor the driving-out section -2.9m of the blender mixer and the discharging trolley; 2 sets; 
(6) Monitor the discharging area of the drying kiln, 1 set. 
    The brick machine feed bin is provided with cameras and the field operation position is arranged with 14-inch monitors. 
 
Power Load Calculation Table 
No. Electric equipment name  Electric equipment  Calculated coefficient  Calculated load  Annual utilization hours of maximum load
Tmax Annual power consumption 
K—kwm Remark 
Quantity (set) Capacity (kW) Kc cosφ tgφ kW kvar kVA
Installation  Operation  Installation  Operation 
I Raw material receiving and batching system 
1 Vibration feeder 2 2 4×1.5 6.0 0.75 0.6 1.34 4.5 6.03
2 Raw-1 tape machine  1 1 90 90 0.65 0.75 0.88 58.5 51.48
3 Electric jaw gate 1 1 1.5 1.5 0.75 0.6 1.34 1.13 1.51
4 Bin wall vibrator  23 23 23×0.75 17.25 0.3 0.75 0.88 5.18 4.55
5 1.5t electric hoist  1 1 2.2+0.4 2.6 0.35 0.5 1.73 0.91 1.57
6 Disk feeder  5 5 5×11 55 0.65 0.75 0.88 35.75 31.46
7 Electronic batching scale  5 5 5×3 15 0.65 0.75 0.88 9.75 8.58
8 Electronic dragging scale  4 4 4×3 12 0.65 0.75 0.88 7.8 6.86
9 Rigid impeller feeder  1 1 2.2 2.2 0.65 0.75 0.88 1.43 1.26
10 Screw feeder  1 1 3 3 0.65 0.75 0.88 1.95 1.72
11 Quick lime slaker 1 1 7.77 7.77 0.65 0.75 0.88 5.05 4.44
12 5t electric hoist  1 1 7.5+0.4 7.9 0.35 0.5 1.73 2.77 4.78
13 2t electric hoist  2 2 6.8 6.8 0.35 0.5 1.73 2.38 4.12
14 Heavy discharging car  1 1 5.5×2 11 0.75 0.6 1.34 8.25 11.06
15 Dust removal fan 1 1 1.68 1.68 0.8 0.8 0.75 1.34 1.01
16 P5 pump-3.4  2 2 5.5x2 11 0.2 0.8 0.75 2.2 1.65
17 Maintenance power  2 2 60 60 0.2 0.5 1.73 12 20.8
18 Lighting and other  5 5 5
Subtotal  50 315.7 165.88 162.84 232.45 323.4A
 
II Fuel and flux crushing and screening system 
1 Electrical-hydraulic bulkhead gate  1 1 2.2 2.2 0.75 0.6 1.34 1.65 2.21
2 Vibration feeder 1 1 2×0.4 2×0.4 0.75 0.6 1.34 0.6 0.8
3 Melt-1 tape machine  1 1 5.5 5.5 0.65 0.75 0.88 3.58 3.15
4 Vertical combination crusher  1 1 75 75 0.65 0.75 0.88 48.75 42.9
5 Melt-2 tape machine  1 1 7.5 7.5 0.65 0.75 0.88 4.88 4.29
6 Flux and cold sinter vibrating screen  1 1 2×3.7 2×3.7 0.5 0.6 1.34 3.7 4.96
7 Melt return-1 tape machine  1 1 3.0 3.0 0.4 0.6 1.34 1.2 1.61
8 Melt return-2 tape machine  1 1 7.5 7.5 0.65 0.75 0.88 4.88 4.29
9 Melt-3 tape machine  1 1 5.5 5.5 0.65 0.75 0.88 3.58 3.15
10 Melt-4 tape machine  1 1 3.0+1.5 4.5 0.4 0.6 1.34 1.8 2.41
11 5t suspended beam crane  1 1 7.5＋2.4 9.9 0.2 0.5 1.73 1.98 3.43
12 Dust removal fan 2 2 57.3 57.3 0.8 0.8 0.75 45.84 34.38
13 Dust humidifier for dust removal  1 1 7.5+0.4 7.9 0.65 0.75 0.88 5.14 4.52
14 Lighting and other  5 5 5
15 10t beam crane  1 1 13+2.4 15.4 0.2 0.5 1.73 3.08 5.33
16 Electrical-hydraulic bulkhead gate  1 1 2.2 2.2 0.75 0.6 1.34 1.65 2.21
17 Vibration feeder 1 1 2×0.4 2×0.4 0.75 0.6 1.34 0.6 0.8
18 Burning-1 tape machine  1 1 5.5 5.5 0.4 0.6 1.34 2.2 2.95
19 Four-roll crusher  1 1 24+30 54 0.7 0.75 0.88 37.8 33.26
20 Burning-2 tape machine  1 1 7.5 7.5 0.65 0.75 0.88 4.88 4.29
21 Burning-3 tape machine  1 1 5.5 5.5 0.65 0.75 0.88 3.58 3.15
22 Burning-4 tape machine  1 1 3.0+1.5 4.5 0.4 0.6 1.34 1.8 2.41
23 Dust removal fan 2 2 7.5+1.1 8.6 0.8 0.8 0.75 6.88 5.16
Subtotal  303 195.02 171.21 259.51 361.04A
 
 
III Mixture system 
1 Water seal slide fastener machine 1 1 11 11 0.65 0.75 0.88 7.15 6.29
2 Disk feeder for hot returning ore 1 1 11 11 0.65 0.75 0.88 7.15 6.29
3 Mixing-1 tape machine  1 1 22 22 0.65 0.75 0.88 14.3 12.58
4 Primary rotary drum mixer 1 1 132 132 0.75 0.8 0.75 99 74.25
5 Mixing-2 tape machine  1 1 15 15 0.65 0.75 0.88 9.75 8.58
6 Secondary rotary drum mixer 1 1 132 132 0.75 0.8 0.75 99 74.25
7 Mixing-3 tape machine  1 1 30 30 0.65 0.75 0.88 19.5 17.16
8 Mixing-4 tape machine  1 1 11 11 0.65 0.75 0.88 7.15 6.29
9 P5 pump-1.2  2 2 5.5x2 11 0.2 0.8 0.75 2.2 1.65
10 Maintenance power  2 2 2×30 60 0.2 0.5 1.73 12 20.76
11 10t electric hoist  4 4 4×13.8 55.2 0.35 0.5 1.73 19.32 33.42
12 1t electric hoist  2 2 3.8 3.8 0.35 0.5 1.73 1.33 2.3
13 Lighting and other  5 5 5
14 Subtotal  499 302.85 263.83 401.65 558.8A
 
IV Sintering and finished product transportation system 
1 Tapered roller feeder 1 1 7.5 7.5 0.65 0.75 0.88 4.88 4.29
2 Ring-type sintering machine 1 1 18.5 18.5 0.7 0.8 0.75 12.95 9.71
3 Single-roll crusher  1 1 30 30 0.7 0.75 0.88 21 18.48
4 Thermal vibration sieve 1 1 2×7.5 15 0.5 0.6 1.34 7.5 10.05
5 Ring cooler  1 1 7.5 7.5 0.75 0.8 0.75 5.63 4.22
6 Ring air cooler  3 3 3x90 270 0.7 0.8 0.75 189 141.75
7 Finished-1 tape machine  1 1 15 15 0.65 0.75 0.88 9.75 8.58
8 Bin wall vibrator  1 1 0.75 0.75 0.3 0.75 0.88 0.23 0.2
9 5t suspended beam crane  1 1 7.5+2.4 9.9 0.2 0.5 1.73 1.98 3.43
10 5t electric hoist  1 1 8.3 8.3 0.35 0.5 1.73 2.91 5.03
11 1t electric hoist  2 2 3.8 3.8 0.35 0.5 1.73 1.33 2.3
12 Maintenance power  5 5 5×30 150 0.2 0.5 1.73 30 51.9
13 Ignition furnace fan 1 1 18.5 18.5 0.8 0.8 0.75 14.8 11.1
14 Preheating furnace fan 1 1 4 8 0.8 0.8 0.75 3.2 2.4
15 Lighting and other  15 15 15
Subtotal  573.75 320.14 273.43 421.01 585.74A
 
V Main exhaust fan room system 
1 Inlet air valve manipulator  1 1 4 4 0.15 0.5 1.73 0.6 1.04
2 Oil station motor  1 1 4.4 4.4 0.8 0.8 0.75 3.52 2.64
3 Electric heater  1 1 3 3 0.65 1 0 1.95 0
4 Axial flow fan  2 2 0.5 0.5 0.75 0.8 0.75 0.38 0.28
5 10t beam crane  1 1 13+2.4 15.4 0.2 0.5 1.73 3.08 5.33
6 Maintenance power  1 1 30 30 0.2 0.5 1.73 6 10.38
7 Roof fan  2 2 6 6 0.75 0.8 0.75 4.5 3.38
8 Lighting and instrument power supply  10 10 10
Subtotal  73.3 30.03 23.04 37.85 52.66A
 
VI Nose electrostatic precipitator 
1 High-voltage rectifier transformer  3 3 216.3 216.3 0.7 0.8 0.75 151.41 113.56
2 Complete set of low-voltage equipment 1 1 40 40 0.65 0.75 0.88 26 22.88
Subtotal  256.3 177.41 136.44 219.08 304.8A
 
VII Tail dust removal system
1 High-voltage rectifier transformer  3 3 156 156 0.7 0.8 0.75 109.2 81.9
2 Complete set of low-voltage equipment 1 1 28 28 0.65 0.75 0.88 18.2 16.02
3 Ash discharge device gear motor  3 3 4.5 4.5 0.65 0.8 0.75 2.93 2.19
4 Screw ash conveyor motor  2 2 11 11 0.65 0.75 0.88 7.15 6.29
5 Dust humidifier  1 1 18.5+2 20.5 0.65 0.75 0.88 13.33 11.73
6 Main induced draft fan 1 1 200 200 0.8 0.8 0.75 160 120
7 Crane and maintenance power  1 1 30 30 0.2 0.5 1.73 6 10.38
8 Lighting  5 5 5
Subtotal  450 321.81 248.51 406.59 567.67A
 
VIII Water treatment system
1 P1 pump set 2 1 2×18.5 18.5 0.8 0.8 0.75 14.8 11.1
2 P2 pump set 2 1 2×11 11 0.8 0.8 0.75 8.8 6.6
3 P3 pump set 1 1 3×18.5 37 0.8 0.8 0.75 29.6 22.2
4 P4 pump set 2 1 2×11 11 0.8 0.8 0.75 8.8 6.6
5 Pipeline filter  1 1 0.75 0.75 0.8 0.8 0.75 0.56 0.42
6 Cooling tower  1 1 5.5 5.5 0.8 0.8 0.75 4.4 3.3
7 Concentration basin  1 1 3 3 0.8 0.8 0.75 2.4 1.8
8 Crane and maintenance 2 2 60 60 0.2 0.5 1.73 12 20.76
9 Lighting and instrument power supply  5 5 5
Subtotal  210.75 86.36 72.78 112.94 157.12A
 
 
 
 
 
 
 
 
Total  2670.8 1599.5 1352.08
Multiply by simultaneity factor KΣW=0.85, KΣY=0.95 0.727 1359.6 1284.5 1870.4
415V low voltage capacitance compensation -900
After compensation  0.962 1359.6 384.5 1413 Select two sets of 2500kVA
 
Transformer loss 27 136
6.6kV main exhaust fan 1 1 1250 1250 0.9 0.85 0.62 1125 697.5
 
Total load  0.90 2511.6 1218 2791 7920h/year 13.9×106kW·h/year
 
 
 
 
 
 
7. Instrumentation and Automation 
According to the technological requirements, the automation instruments are designed as follows: 
7.1 Loading detection 
(1) High and low material level detection of magnesia (corundum) and graphite powder receiving bins; 
(2) Low material level detection of liquid resin feed pot; 
(3) Running current detection of magnesia (corundum) feeding funnel type elevator; 
(4) High material level detection of magnesia (corundum), graphite powder and additive storage bins;  
(5) Resin weightlessness weighing tank ultrasonic wave material level and thermocouple 0～100℃(equipment matching);  
(6) Compressed air line pressure detection 0～0.8MPa; 
(7) The magnesia (corundum), graphite powder and additive storage bins are provided with the radar material level meters respectively for continuous online automatic detection and with high-low material level alarm to be displayed in the master control room;  
(8) Whether the storage bin is filled up is shown with red and green indicator lights at the worker operating position in the receiving bin; 
(9) Pressure detection 0～10kPa before and after the charging fluidization point in the graphite powder transport pipeline; 
(10) The screw conveyor is configured with the broken shaft detection and adopts Turck proximity switch. 。
All detecting parameters enter the microcomputer control system of the master control room. 
7.2 Batching measuring and weighing car 
(1) Magnesia and corundum weighing tape machine B=1200mm. Each tape machine has 4 weighing points, is started immediately after weighing, stops running after the material weight returns to zero and is controlled by the batching mathematical model;   
(2) The graphite powder and additives adopt 1m3 weighing bins with the range of 0～600kg and 0～100kg respectively;  
(3) The conveying trolley is equipped with 4 weighing hoppers, which are used for granules, powder, graphite and additives respectively; the weighing equipment is Schenk Intercont; 
(4) The resin weighing tank adopts weightlessness weighing and feeding (equipment matching);  
(5) Compressed air line pressure detection 0～0.8MPa; 
(6) The screw conveyor is configured with the broken shaft detection and adopts Turck proximity switch. 
For the weighing equipment and matching feeding equipment (vibration feeder or screw conveyor) of the batching system as well as the rapid pneumatic butterfly valve interlocking, the butterfly valve shall be close to the weighing equipment to the greatest extent in installation to improve the batching precision. 
7.3 Mixing system 
(1) Blender mixer temperature detection, display, record and alarm;  
(2) Blender mixer cooling equipment and instrument set;  
(3) Compressed air line pressure detection 0～0.8MPa.
    (Eirich DE18 mixer is second-hand equipment, as shown in the details). 
7.4 Brickmaking system
(1) Matching instrument system of brick machine;  
(2) Cooling water outlet pressure display, record and alarm, with the range of 0～0.6MPa; 
(3) Cooling water outlet temperature display, record and alarm, with the range of 0～100℃; 
(4) Cooling water outlet flow display, record and alarm, with the range of 0～,20m3/h; 
(5) Hot water tank temperature display and record, with the range of 0～100℃; 
(6) Hot water tank high and low level display, record and alarm;  
(7) Compressed air line pressure detection 0～0.8MPa.
7.5 Drying system
All of the matching instruments of the drying system enter PLC of this system and transmit the main data through network to the upper computer control system. 
(1) Dust remover inlet flow display. 
(2) Dust remover inlet pressure display. 
(3) Dust remover inlet temperature display. 
(4) Dust remover outlet flow display. 
(5) Dust remover outlet pressure display. 
(6) Dust remover outlet temperature display. 
(7) Fan valve manual operation. 
 
8. Architectural Structure
8.1 Overview
Hot Rock project of Glauch Systems Industry W.L.L. in Doha is located in the southeast of Doha Mesaieed and close to Mesaieed Industrial Rd. Geographical coordinations:  Latitude:  25°15′N, longitude:  51°34′E.
Doha, located in Arabian Peninsula in Arabian Gulf with subtropical arid climate, is almost sunny year-round and less cloudy; the average temperature from May to September exceeds 30℃ and often reaches 40℃. Scarce rainfall mostly appears from October to March; low temperature in winter nighttime can drop to below 10℃; the average sunshine time is 9.5h. 
8.1.1 Design basis and principle
(1) Design contract and accessories. 
(2) Relevant professional design assignments. 
(3) Meet the production process and overall layout and achieve practical, durable, technologically advanced, economically rational, appropriate standards and beautiful. 
(4) Meet the workshop production features and consider the plant’s thermal insulation, dust prevention, ventilation, lighting and anti-noise standards and requirements. 
(5) Implement the quality assurance system for the engineering design to ensure design quality and cycle. 
8.1.2 Meteorological conditions and other 
Meteorological conditions
(1) Temperature
Highest:  42°C
Lowest:  10°C
Average temperature: 17-35℃
(2) Humidity
Maximum: 88%
Minimum: 20%
(3) Precipitation 
Annual average: 98mm
(4) Wind direction and wind speed
Predominant wind direction: north wind and northeaster 
Maximum wind speed: 31m/h
Average wind speed: 8-25km/h
(5) Seismic data 
No earthquake 
Anti-seismic is designed based on minimum standard of 6 degrees in China’s national standard. 
8.1.3 Main design basis
(1) Basic wind load: 0.6kN/m2; 
(2) Basic sand load: 1.5kN/m2; 
(3) Other load: executed according to relevant professional requirements and relevant specifications and rules. 
8.1.4 Local building materials and construction conditions 
(1) Three materials: steel, cement and wood used in construction can be purchased locally. 
(2) Local materials: brick, stone and sand are solved locally. 
(3) Construction conditions: local construction power can complete the construction of this project. 
8.2 Building 
8.2.1 Building materials
(1) Selected and used according to the building atlas. 
(2) Reasonably use local building materials. 
8.2.2 Unified technical conditions of building 
(1) The relative elevation of indoor floor of all workshops is +0.300m and the inoor and outdoor elevation difference is 300mm; the relative elevation ±0.000m is equivalent to the absolute elevation +0.800m. 
(2) With the plan view size as the axis size and regardless of the wall thickness and column thickness, the roof platform elevation is the roof boarding bottom or crane beam bottom value. 
(3) Column space and span is based on 100mm×n. According to the production technology requirements and building structure characteristics, the column grid of various buildings and structures is specifically determined (except for individuals) and the storey height is best the multiple of 100mm. 
(4) The elevation of the floors and platforms of the production workshop and auxiliary facilities is determined according to the process requirements and is best the multiple of 300mm when ventilation, lighting and other requirements are met. 
(5) Other:  
a. See the architectural drawings for the building fire resistance rating;  
b．; 
c．; 
d. The buildings shall be subject to thermal insulation and the wall adopts color steel sandwich board. 
8.2.3 Building construction 
(1) Wall: see the architectural drawings and maintenance structure;  
(2) Flooring: the plant floor adopts cement floor; +6.4m and +10.3m adopt cement floor according to the requirements; MCC room and QC room adopt floor tile floor;  
(3) Roof:  ; 
(4) Doors and windows:  ; 
(5) Stairs and access ladders: special steel ladders are provided according to production requirements and the access ladders are provided on the roof;  
(6) Decoration:  
8.3 Structure
8.3.1 Structural design principle 
According to GSI requirements, the plants are of steel frame and steel bent structure. 
The batching area adopts concrete filled steel tubular columns. 
8.3.2 Foundation and base 
According to the engineering geological data provided by GSI. 
 
8.3.3 Multi-storey plants
(1) The batching plant is of steel structure and mainly has steel structure platforms; +6.4m and +10.3m are concrete platforms;  
(2) MCC room and QC room floor is made of concrete. 
8.3.4 Single-storey plants
(1) Raw material warehouse;  
(2) The plants in the brick machine area are of steel column, steel crane girder, steel roof and frame-bent structure and the roof adopts double-layer profiled steel sheet;  
(3) The plants in the dryer area are of steel column and steel roof structure and the roof adopts double-layer profiled steel sheet; 
8.3.5 Auxiliary buildings 
All steel structure. 
8.3.6 Structures 
(1) Raw material warehouse unloading platform: cast-in-place reinforced concrete structure;  
(2) Pool: steel structure;  
(3) Resin warehouse: insulated steel structure;  
(4) Dust removal bracket and piping support: steel structure;  
(5) Outdoor trenches: reinforced concrete trenches and cover plates;  
(6) Outdoor bridge: steel structure. 
 
9. Environmental Protection
9.1 Description 
The environmental impact assessment of this project is undertaken by relevant local unit entrusted by Party A. Any inconsistency between the environmental protection design of this project and the project environmental impact statement as well as the approval opinions thereof shall be subject to the statement and the approval opinions thereof. 
9.2 Design basis 
Design data provided by technology, dust removal by ventilation, water supply and drainage and other specialties for environmental protection specialty. 
9.3 Project profile 
Hot Rock project of Glauch Systems Industry W.L.L. in Doha proposed n this project is located in the southeast of Doha Mesaieed and close to Mesaieed Industrial Rd. Geographical coordinations:  Latitude:  25°15′N, longitude:  51°34′E.
The project is a new project. 
The project will be implemented according to the following three phases:  
Phase 1: 25000t/year refractory brick;  
Phase 2: 60000t/year refractory brick, 20000t/year magnesian castable and 10000t/year aluminum oxide castable;  
Phase 3: 120000t/year refractory brick and magnalium carbonic refractory brick, 40000t/year magnesian castable and 10000t/year aluminum oxide castable.
9.4 Environmental protection design principle 
This project actively uses the technologically mature and economically rational new process, new technology, new equipment and new materials to improve the utilization of resources and energy and to maximize the elimination of pollution in the production process; promotes cleaner production, minimizes the energy consumption and controls the pollutant generation and emission as much as possible from the sources to achieve energy-saving and cost-reducing and efficiency-increasing and pollution-reducing; improves the repeating utilization factor of the industrial water to protect water environment and achieve zero emissions and minimum consumption; recycles and harmlessly treats the wastes generated during production as much as possible. The “three wastes” which have to be discharged outward must meet the pollutant emission control requirements. 
9.5 Primarypollution sources and pollutants and control measures thereof
9.5.1 Exhaust gas pollution sources, pollutants and control measures
    The main factor polluting the atmospheric environment during the brickmaking is the dust; the design scope is mainly from the charging, batching and mixing processes during production; the main dust pollution sources and the control thereof are as follows:  
a) Charging 
The air pollutant produced by magnesia, corundum, graphite powder and additives during loading and transport is dust, which is collected by seven pulsed ject cloth filters with the dust removal efficiency η of greater than 99.5% in the design. The purified flur gas is discharged to the atmosphere outside the plant through the fan. The dust content in stack gas is less than 50mg/m3.
b) Batching. 
The air pollutant produced during batching is dust, which is collected by a pulsed ject cloth filter with the dust removal efficiency η of greater than 99.5% in the design. The purified flur gas is discharged to the atmosphere outside the plant through the fan. The dust content in stack gas is less than 50mg/m3.
c) Mixing 
The air pollutant produced during mixing is dust, which is collected by the pulsed ject cloth filter with the dust removal efficiency η of greater than 99.5% in the design. The purified flur gas is discharged to the atmosphere outside the plant through the fan. The dust content in stack gas is less than 50mg/m3.
d) Environmental dust removal 
To facilitate the cleaning of all platforms in the batching plant, it is designed to use the pulsed jet cloth filter with the dust removal efficiency η of greater than 99.5%. The purified flur gas is discharged to the atmosphere outside the plant through the fan. The dust content in stack gas is less than 50mg/m3.
9.5.2 Waste water pollution sources, pollutants and control measures
The brickmaking production water is supplied by the circulating water supply system for the brick machine system. The clean circulating water for production is 60m3/h and the make up water amount of the circulating system is 0.6m3/h (average). 
The workshop has no production water discharged outward normally. 
9.5.3 Solid wastes 
The solid wastes, including the additive fly ash, mixing fly ash and environmental fly ash, are discharged to the ton bags before outward transport for centralized treatment. 
9.5.4 Noise source and control measures 
The main noise source of the workshop is from the operation of the dust removal fan, blender mixer, circulating water pump and other equipment. The shock pads and noise barriers are used in design and installation and the double-layer doors and windows are used in the operation room for sound insulation, so the noise generated in equipment operation can be controlled below 65 dB(A) at daytime and 55 dB(A) at night (except production plants).  
The fans of the dust removal systems shall adopt low speed and low noise devices as far as possible and the dust removal pipelines are flexibly connected with the dust removal equipment and fans. 
9.6 Width of sanitary protection zone 
    Since the average wind speed of the region where GSI is located is greater than 4m/s in recent five years, the width of sanitary protection zone is determined as 400m. In addition to meeting the above requirements for the width of sanitary protection zone, the impact of the wind direction, frequency, terrain and other factors shall also be considered for the distance between the production plant and the residential area to minimize the pollution to the atmospheric environment of the residential area. 
9.7 Environmental monitoring and environmental management agencies 
The exhaust funnels of all dust removers shall be provided with permanently sampling and monitoring holes and sampling and monitoring platform. 
9.8 Recommendations 
(1) Strengthen environmental management and constantly accumulate information during production to ensure that the surrounding environment of the company is not polluted or the pollution is controlled within the minimum limits. To this end, the company shall appoint special personnel to be in charge of the workshop pollution regulation, maintenance and environmental monitoring. 
(2) Strengthen the maintenance and management of the dust removal equipment and pay attention to routine maintenance and detection to ensure its proper functioning and maintain its rated efficiency and prevent pollution to the environment. 
 
10. Labor Safety and Hygiene 
10.1 Overview 
The safety technology refers to the measures to be taken in the design to prevent the major natural disasters and the possible accidents in the process equipment and production process. The safety technology design strictly follows relevant regulations and requirements and implements the policy of safety first and prevention first. 
10.2 All factors and occupational hazard analysis 
(1) Natural hazard factors: torrential rain, thunder, earthquakes, typhoons and heat, etc. 
(2) Production hazard factors: unsafe factors and hazards in the production process, including electrical accidents, mechanical injury, working accidents, transport equipment damage, fire and explosions. 
(3) Occupational hazard factors: main occupational hazards in the production process include productive dust, exhaust gas, equipment operation noise, heat radiation and toxic and harmful gases. 
10.3 Occupational safety measures 
10.3.1 Measures preventing natural disasters 
(1) Anti-storm: the indoor floor of the buildings is higher than outdoor floor to prevent the rainstorm water from diffusing indoor; the rainwater drainage pipe network is designed according to local storm formula. 
(2) Anti-thunder: the buildings and structures of above 15m in this project are provided with the lighning rods or lightning strips with the ground resistance of less than 4 ohms; the electrical lightning protection is considered together with the ground protection; the electrical equipment adopts the security measures as required. 
(3) Anti-hurrican: the wind loading rating of all buildings in the design is calculated and designed according to maximum fortified wind speed in the local regulations. 
(4) Anti-hot weather: the operation rooms are provided with fans or air conditioners and other operation zones are provided with fans and other cooling and ventilation facilities; the heat insulation measures are taken for the equipment and pipelines with the surface temperature of greater than 80℃; the drying kiln adopts totally-enclosed hearth structure and closed ventilation form; the plants adopt forced roof ventilation and the room temperature in summer does not exceed the outdoor temperature by 2℃.
(5) Anti-earthquake: the new houses in this project are fortified based on the local seismic basic intensity of 6 degrees. 
10.3.2 Measures preventing production hazards 
(1) Electrical safety protection 
Relay protection measures: the main switch at the low voltage side of the transformer is provided with the intelligent low-voltage circuit breaker for short circuit and overload protection; the low voltage motor is provided with short circuit, overload, low voltage and open phase protection. 
Ground protection: all electrical equipment is subject to ground protection. 
Electrical interlock control and monitoring: the operation modes mainly include centralized automatic control and on-site manual control. During normal production, the overall centralized interlock control and monitoring is conducted through the operation station; the electrical operation room is equipped with equipment operation status, equipment failure status and other control and monitoring screens for safety production monitoring. 
Safety lighting: the key parts shall be provided with emergency lamps and the overhaul socket loops are provided with leakage circuit breakers. 
The diesel generating set is equipped to guarantee office and domestic electricity and UPS is provided for the computer control system of the production workshop. 
(2) Safety protection of mechanical equipment 
The operation control system of various types of mechanical equipment is provided with all necessary safety interlocks to prevent working accidents; the signal system adopts the repeating central fault signal and central warning signal devices, i.e, sound, light accident signal and other safety measures; the exposed rotating parts of the transmission equipment are provided with safety shields; the ribbon conveyors are equipped with filter belt centering devices, emergency switches and inspection switches to achieve emergency stop; all operating platforms, walkways, stairs, pits and trenches are designed with safety barriers and cover plates according to relevant standards to prevent personal fall; the equipment lifting holes are provided with safety barriers or metal grid plates and protective baffles; all unsafe areas and accident-prone areas are provided with safety signs and coated with safety color codes. 
(3) Safe water supply 
The water supply pump has a standby pump; the monitoring and alarm devices are provided for water pressure, water temperature and water level; the workshops are equipped with dedicated domesic water supply pipes and sewers, which are strictly separated from industrial water. 
(4) Fire and explosion protection 
The appropriate fire resistance rating is designed according to the fire danger rating of the buildings; the indoor and outdoor fire control pipe network and fire hydrants (which have been uniformly considered by GSI) are equipped; the power cables and control cables adopt flame retardant cables; the cable holes at the bottom of the electrical cabinets, distribution boards and control consoles are blocked by anti-fire plugs; the entrance for outdoor cables to enter the distribution room is equipped with the fireproof bulkhead and blocked by fire-proof materials; the graphite bin and additive bin adopt explosion-proof design. 
10.4 Industrial health protection measures 
10.4.1 Dust prevention 
The airtight ventilation and dust removal measures are designed for all dust generation points to strictly control dust spills and improve the work environment; the magnesia, corundum and graphite fly ash directly enters the system stock bin for recycling; the quick lime bin is individually set in a sealed plant and the bin roof is provided with a stand-alone dust remover. The quick lime is slaked by the sealed quick lime screw slaker with dust removal, greatly reducing the dust concentration in the work zone. 
10.4.2 Noise reduction 
The fans, blender mixers and circulating water pumps in this workshop are the main noise source on the production posts, so the low-noise equipment is selected in the design; the inlet and outlet of the bag-type dust removal fans are subject to flexible connection; the sound insulation and noise reduction measures are taken in electrical room, control room and other post operation rooms. 
10.4.3 Sunstroke prevention 
The master control room, electrical control room, low-voltage distribution room and other posts with staff staying for long are provided with refrigeration air conditioning facilities; the workshops are ventilated for cooling. 
10.4.4 Daylighting and lighting 
Sufficient consideration is given to the use of natural light in the architectural design. The architectural lighting requirements are met by setting the daylighting side windows; the lighting in the plant meets the requirements of production posts for illuminance. 
10.5 Labor safety andhygiene management and detection mechanism 
GSI uniformly considers assigning a full-time technical staff responsible for daily safety and sanitation to form the management network and ensure safety and sanitation. 
10.6 Expected effect 
For the specific production processes and actual local conditions, this project takes anti-earthquake, anti-thunder, anti-hurrican, anti-heatstroke and other measures as well as a series of safe power supply, safe water resistance, mechanical injury prevention, fire explosion prevention and other measures, guaranteeing the mechanical equipment and personal safety under normal circumstances, and also takes dust removal, noise reduction and other measures for the production characteristics to create a good working environment for the staff. 

世聯(lián)翻譯-讓世界自由溝通！專業(yè)的全球語言翻譯供應(yīng)商，上海翻譯公司專業(yè)品牌。絲路沿線56種語言一站式翻譯與技術(shù)解決方案，專業(yè)英語翻譯、日語翻譯等文檔翻譯、同傳口譯、視頻翻譯、出國(guó)外派服務(wù)，加速您的全球交付。 世聯(lián)翻譯公司在北京、上海、深圳等國(guó)際交往城市設(shè)有翻譯基地，業(yè)務(wù)覆蓋全國(guó)城市。每天有近百萬字節(jié)的信息和貿(mào)易通過世聯(lián)走向全球！積累了大量政商用戶數(shù)據(jù)，翻譯人才庫(kù)數(shù)據(jù)，多語種語料庫(kù)大數(shù)據(jù)。世聯(lián)品牌和服務(wù)品質(zhì)已得到政務(wù)防務(wù)和國(guó)際組織、跨國(guó)公司和大中型企業(yè)等近萬用戶的認(rèn)可。

  • “貴司提交的稿件專業(yè)詞匯用詞準(zhǔn)確，語言表達(dá)流暢，排版規(guī)范， 且服務(wù)態(tài)度好。在貴司的幫助下，我司的編制周期得以縮短，稿件語言的表達(dá)質(zhì)量得到很大提升”

    華東建筑設(shè)計(jì)研究總院

  • “我單位是一家總部位于丹麥的高科技企業(yè)，和世聯(lián)翻譯第一次接觸，心中仍有著一定的猶豫，貴司專業(yè)的譯員與高水準(zhǔn)的服務(wù)，得到了國(guó)外合作伙伴的認(rèn)可！”

    世萬保制動(dòng)器（上海）有限公司

  • “我公司是一家荷蘭駐華分公司，主要致力于行為學(xué)研究軟件、儀器和集成系統(tǒng)的開發(fā)和銷售工作，所需翻譯的英文說明書專業(yè)性強(qiáng)，翻譯難度較大，貴司總能提供優(yōu)質(zhì)的服務(wù)�！�

    諾達(dá)思（北京）信息技術(shù)有限責(zé)任公司

  • “為我司在東南亞地區(qū)的業(yè)務(wù)開拓提供小語種翻譯服務(wù)中，翻譯稿件格式美觀整潔，能最大程度的還原原文的樣式，同時(shí)翻譯質(zhì)量和速度也得到我司的肯定和好評(píng)！”

    上海大眾

  • “在此之前，我們公司和其他翻譯公司有過合作，但是翻譯質(zhì)量實(shí)在不敢恭維，所以當(dāng)我認(rèn)識(shí)劉穎潔以后，對(duì)她的專業(yè)性和貴公司翻譯的質(zhì)量非常滿意，隨即簽署了長(zhǎng)期合作合同�！�

    銀泰資源股份有限公司

  • “我行自2017年與世聯(lián)翻譯合作，合作過程中十分愉快。特別感謝Jasmine Liu, 態(tài)度熱情親切，有耐心，對(duì)我行提出的要求落實(shí)到位，體現(xiàn)了非常高的專業(yè)性�！�

    南洋商業(yè)銀行

  • “與我公司對(duì)接的世聯(lián)翻譯客服經(jīng)理，可以及時(shí)對(duì)我們的要求進(jìn)行反饋，也會(huì)盡量滿足我們臨時(shí)緊急的文件翻譯要求。熱情周到的服務(wù)給我們留下深刻印象！”

    黑龍江飛鶴乳業(yè)有限公司

  • “翻譯金融行業(yè)文件各式各樣版式復(fù)雜，試譯多家翻譯公司，后經(jīng)過比價(jià)、比服務(wù)、比質(zhì)量等流程下來，最終敲定了世聯(lián)翻譯。非常感謝你們提供的優(yōu)質(zhì)服務(wù)�！�

    國(guó)金證券股份有限公司

  • “我司所需翻譯的資料專業(yè)性強(qiáng)，涉及面廣，翻譯難度大，貴司總能提供優(yōu)質(zhì)的服務(wù)。在一次業(yè)主單位對(duì)完工資料質(zhì)量的抽查中，我司因?yàn)槎砦姆g質(zhì)量過關(guān)而受到了好評(píng)�！�

    中辰匯通科技有限責(zé)任公司

  • “我司在2014年與貴公司建立合作關(guān)系，貴公司的翻譯服務(wù)質(zhì)量高、速度快、態(tài)度好，贏得了我司各部門的一致好評(píng)。貴司經(jīng)理工作認(rèn)真踏實(shí)，特此致以誠(chéng)摯的感謝！”

    新華聯(lián)國(guó)際置地（馬來西亞）有限公司

  • “我們需要的翻譯人員，不論是筆譯還是口譯，都需要具有很強(qiáng)的專業(yè)性，貴公司的德文翻譯稿件和現(xiàn)場(chǎng)的同聲傳譯都得到了我公司和合作伙伴的充分肯定。”

    西馬遠(yuǎn)東醫(yī)療投資管理有限公司

  • “在這5年中，世聯(lián)翻譯公司人員對(duì)工作的認(rèn)真、負(fù)責(zé)、熱情、周到深深的打動(dòng)了我。不僅譯件質(zhì)量好，交稿時(shí)間及時(shí)，還能在我司資金周轉(zhuǎn)緊張時(shí)給予體諒。”

    華潤(rùn)萬東醫(yī)療裝備股份有限公司

  • “我公司與世聯(lián)翻譯一直保持著長(zhǎng)期合作關(guān)系，這家公司報(bào)價(jià)合理，質(zhì)量可靠，效率又高。他們翻譯的譯文發(fā)到國(guó)外公司，對(duì)方也很認(rèn)可�！�

    北京世博達(dá)科技發(fā)展有限公司

  • “貴公司翻譯的譯文質(zhì)量很高，語言表達(dá)流暢、排版格式規(guī)范、專業(yè)術(shù)語翻譯到位、翻譯的速度非�？臁⒑笃诜⻊�(wù)熱情。我司翻譯了大量的專業(yè)文件，經(jīng)過長(zhǎng)久合作，名副其實(shí)，值得信賴�！�

    北京塞特雷特科技有限公司

  • “針對(duì)我們農(nóng)業(yè)科研論文寫作要求，盡量尋找專業(yè)對(duì)口的專家為我提供翻譯服務(wù)，最后又按照學(xué)術(shù)期刊的要求，提供潤(rùn)色原稿和相關(guān)的證明文件。非常感謝世聯(lián)翻譯公司！”

    中國(guó)農(nóng)科院

  • “世聯(lián)的客服經(jīng)理態(tài)度熱情親切，對(duì)我們提出的要求都落實(shí)到位，回答我們的問題也非常有耐心。譯員十分專業(yè)，工作盡職盡責(zé)，獲得與其共事的公司總部同事們的一致高度認(rèn)可�！�

    格萊姆公司

  • “我公司與馬來西亞政府有相關(guān)業(yè)務(wù)往來，急需翻譯項(xiàng)目報(bào)備材料。在經(jīng)過對(duì)各個(gè)翻譯公司的服務(wù)水平和質(zhì)量的權(quán)衡下，我們選擇了世聯(lián)翻譯公司。翻譯很成功，公司領(lǐng)導(dǎo)非常滿意�！�

    北京韜盛科技發(fā)展有限公司

  • “客服經(jīng)理能一貫熱情負(fù)責(zé)的完成每一次翻譯工作的組織及溝通。為客戶與譯員之間搭起順暢的溝通橋梁。能協(xié)助我方建立專業(yè)詞庫(kù)，并向譯員準(zhǔn)確傳達(dá)落實(shí)，準(zhǔn)確及高效的完成統(tǒng)一風(fēng)格。”

    HEURTEY PETROCHEM法國(guó)赫銻石化

  • “貴公司與我社對(duì)翻譯項(xiàng)目進(jìn)行了幾次詳細(xì)的會(huì)談，期間公司負(fù)責(zé)人和廖小姐還親自來我社拜訪，對(duì)待工作熱情，專業(yè)度高，我們雙方達(dá)成了很好的共識(shí)。對(duì)貴公司的服務(wù)給予好評(píng)！”

    東華大學(xué)出版社

  • “非常感謝世聯(lián)翻譯！我們對(duì)此次緬甸語訪談翻譯項(xiàng)目非常滿意，世聯(lián)在充分了解我司項(xiàng)目的翻譯意圖情況下，即高效又保質(zhì)地完成了譯文�！�

    上海奧美廣告有限公司

  • “在合作過程中，世聯(lián)翻譯保質(zhì)、保量、及時(shí)的完成我們交給的翻譯工作�？蛻艚�(jīng)理工作積極，服務(wù)熱情、周到，能全面的了解客戶的需求，在此表示特別的感謝。”

    北京中唐電工程咨詢有限公司

  • “我們通過圖書翻譯項(xiàng)目與你們相識(shí)乃至建立友誼，你們報(bào)價(jià)合理、服務(wù)細(xì)致、翻譯質(zhì)量可靠。請(qǐng)?jiān)试S我們借此機(jī)會(huì)向你們表示衷心的感謝！”

    山東教育出版社

  • “很滿意世聯(lián)的翻譯質(zhì)量，交稿準(zhǔn)時(shí)，中英互譯都比較好，措辭和句式結(jié)構(gòu)都比較地道，譯文忠實(shí)于原文。TNC是一家國(guó)際環(huán)保組織，發(fā)給我們美國(guó)總部的同事后，他們反應(yīng)也不錯(cuò)�！�

    TNC大自然保護(hù)協(xié)會(huì)

  • “原英國(guó)首相布萊爾來訪，需要非常專業(yè)的同聲傳譯服務(wù)，因是第一次接觸，心中仍有著一定的猶豫，但是貴司專業(yè)的譯員與高水準(zhǔn)的服務(wù)，給我們留下了非常深刻的印象�！�

    北京師范大學(xué)壹基金公益研究院

  • “在與世聯(lián)翻譯合作期間，世聯(lián)秉承著“上善若水、厚德載物”的文化理念，以上乘的品質(zhì)和質(zhì)量，信守對(duì)客戶的承諾，出色地完成了我公司交予的翻譯工作。”

    國(guó)科創(chuàng)新（北京）信息咨詢中心

  • “由于項(xiàng)目要求時(shí)間相當(dāng)緊湊，所以世聯(lián)在保證質(zhì)量的前提下，盡力按照時(shí)間完成任務(wù)。使我們?cè)谑啦⿻?huì)俄羅斯館日活動(dòng)中準(zhǔn)備充足，并受到一致好評(píng)。”

    北京華國(guó)之窗咨詢有限公司

  • “貴公司針對(duì)客戶需要，挑選優(yōu)秀的譯員承接項(xiàng)目，翻譯過程客戶隨時(shí)查看中途稿，并且與客戶溝通術(shù)語方面的知識(shí)，能夠更準(zhǔn)確的了解到客戶的需求，確保稿件高質(zhì)量。”

    日工建機(jī)（北京）國(guó)際進(jìn)出口有限公司

少妇的丰满3中文字幕电影| 日本免费AⅤ乱码高清专区| 国产在线看av不卡无码网站免费| 亚洲高清国产拍精品青青草原| 午夜国产一级大片免费观看| 777午夜精品被窝影院| 丰满多毛xXXⅩ精品视频| 亚洲一区二区精品按摩| 2021最新在线无码视频| 成人高清毛片视频| 欧美一区二区免费播放| 熟女一区二区天天操夜夜操| 亚洲一区二区三区网站观看| 老师解开乳罩喂奶我脱她内| 激情婷婷丁香五月| 亚洲成Av人片乱码色午夜在线| 亚洲午夜电影欧美整片sss| 亚洲国产精品 制服丝袜| 免费国产成人无码学生妹| 果冻国产精品麻豆成人av电影| 国产一级精品精品精品| 欧美亚州国产精品| 国产特黄色一级| 女人用炮机高潮合集视频播放| 韩国羞羞漫画无遮羞在线看| 日韩产品和欧美产品的区别| 国产欧美va欧美va在观看| 欧美色吧久久综合| 香蕉久久一區二區不卡無毒影院| 成年午夜免费aⅴ在线观看| 欧美日本韩国在线视频| 亚洲精品高清你懂的| 亚洲人成人一区在线观看 | 最新全集网电影免费在线看| 欧美日韩电影码国产| 日韩精品视频无码一区我們每天24小時不間斷 | ddd54手机免费看| 无码日韩做暖暖大全免费| 性奴秘书裸侍跪趴等主人玩| 日本特黄特色大片免费在线观看| 亚洲午夜一区二区三区福利| 亚洲成a∨人片在线观看无码好看| 国产高清永久免费| 内裤堵嘴app高清| 亚洲青青草原男人的天堂| 欧美日本不卡一二三区| 高潮喷水女仆流白浆| 欧美一区二区久久精品| 成人午夜福利小视频| 不卡一卡二卡在线视频黄色大片免费在线观看 | 女佣的味道hd中字在线观看| 亚成人欧美在线观| 2022AV天堂高清视频在线| 性XXXXX欧美老肥婆多毛| 澳门l永久无码视频| 国产区沙发午睡系列| 后入式肏大屁股眼免费视频| 99在线免费观看黄片| 99精品又大又粗又硬少妇毛片 | 中文字幕日產a片在線看| 亚洲欧美日韩国产精品中文字幕| 免费成人三级电影在线观看| 天堂国产成人av在线| 亚洲午夜无码电影| 亚洲最新无码av网址| 操小孩污视频在线免费观看| 乡村女教师艳妇欲爱| 好爽快点我受不了了视频| 午夜精品一区二区三区成人| 影视免费三级少妇| 久久精品99毛片免费| 国产黄色三级三级三级| 无码国产精成人午夜视频| 中文字幕黄色在线观看| 亚洲中久无码永久在线观看同| 国产A级无码一级毛片| 国产刺激一女多男一区二区| 秋霞影院韩国伦片在线播放| 亚洲国产福利精品一区二区| 日韩激情偷拍第3页| v影院一区二区三区自产不卡视频| 色欲洲av无码精品国产午夜亚色| 国产亚洲日韩网曝欧美11| 国产视频日日操| 色天堂在线观看视频| 亚洲欧美日韩中文高清| 色小说色网视频| 973午夜伦伦电影论片| 亚洲欧美一区二区在线观看| 欲乱人妻少妇邻居+毛片| 亚洲欧州国产综合不卡在线免费视频| 国产亚洲乱码无码www| 女人19水真多免费毛片| 成在人线Aⅴ免费观看| 国产精品???a片在线观看原神| 果冻国产精品麻豆成人av电影| 黄色美女网站av| 国产高清不卡免费在线观看| 日韩国产精品99久久久久| 亚洲男人天堂无码2024| 无码国产精品一区二区蕉蕉免费式| 国语对白国产精品一区| 色综合久久久久综合体桃| 国产精品小姐久久久久久| 91香蕉视频国产免费下载 | 91久久精品美女高潮| 欧美国产第一区| 鲁大师在线手机日韩| 亚洲日韩成人在线| 国产亚洲加勒比久久精品| 亚洲日产精品一二三四区| 二级黄色录像片免费播放| 少妇人妻一区二区视频| 亚洲高清国产拍精品青青草原| 911永久在线网站| 国产欧美一区二区日本加勒比 | 一级做性色α爱片久久毛片色| 一区二区三区国产V欧美| 黄色人成影院一级| 亚洲综合五月天激动情网 | 天天噜夜夜噜狠狠噜| 97久久久精品综合88久久| 欧美日韩精品第一区二区| 99精品欧美一区二区蜜桃美图| 日本无码一区AⅤ二三区超碰| 亚洲精品狼友在线播放| 久久99人妻精品涩爱噜噜噜蜜臀| 亚洲人成人一区在线观看| 日韓三級電影在線觀看| 天天爽天天爽夜夜爽毛片| 久久人人爽人人澡人人高潮AV| 97久久久精品综合88久久| 老赵揉着粉嫩的双乳太舒服了秀婷| 国精一二二产品无人区免费应用| 久久精品亚瑟全部免费观看| 日韩欧群交p片内射中文| 亚洲中文字幕在线有码| 欧美韩国亚洲精品综合a| 夜色www中国精品视频网站| jizz成熟丰满老女人| 婷婷六月天无码| 99久久国产综合精品尤物婷婷| 亚洲一级午夜福利| 欧美人妻精品一二三区| 國產午夜人做人免費視頻中文| 亚洲第一aⅴ天堂在线观看| 欧美一区二区三区福利网| 午夜老司机福利日韩视频在线高清| 亚洲中文字幕一区二区三区在线91 | 孕妇动漫精品国产一区二区三区| 一本色道無碼道dvd在線觀看| 日本高清免费中文字幕区dd| 91果冻精品国产自产自产在| 91影视在线观看| 欧美激情xxxx孕妇| 国产性欧美疯狂猛交69hd| 中文无码一区99xav| 中文字幕无码138页| 午夜网站黄色在线观看免费完整高清观看| 国产综合v亚洲欧美大片| 九九九九在线精品免费视频| 欧美精品在线观看不卡一区| 最新av网站网址免费观看| 99国内精品久久久久久| 五月丁香婷婷免费| 亚洲一区二区麻豆AV| 91精品导航在线观看| 九九九九在线精品免费视频| 天美传媒国产精品果冻| 午夜福利男女xx00视频网站 | 亚洲欧美日韩a∨在线观看| 五月丁香婷婷免费| 亚洲电影激情五月激情| 国产 亚洲 欧美 另类中文| 国产精品久久久久片免费又是看| 日韩午夜不卡在线看| 蜜臀久久精品国产亚洲av| 波多野结衣的AⅤ一区二区三区| 一区二区三区无码在线| 清纯唯美欧美综合第一页| 黄色午夜网站| 自拍日韩葡萄影院视频在线播放 | 国产成 人 亚洲 综合| 国语对白国产精品一区| 欧美A级毛片免费播敢| 色呦呦网站免费| 精品久久久久免费免费自慰| 国产精品免费播放器大全| 欧美激情四射一区二区在线| 在线观看精品成人综合视频| 96久久自偷自偷国产精品| av在线免费观看高清| 丰满少妇猛烈进入无码| 人妻中文字幕无碼在线| 網友分享免费福利资源站在线视频心得| 熟妇久久综合中文色鬼| 久久偷拍视频SPA| 天堂成人在线视频| 一区二区三区色网视频在线观看| 中文无码一区99xav| 国产精品主播视频欧美日韩| 美女我无遮挡被艹网站自慰| 污视频网站日本免费| 亚洲欧美中文国产二区| 白丝乳交内射一二三区| 亚洲欧美中文李幕高清在线| 国产网友自拍视频| 国产福利精品在线| 日韩免费无码| 99国内精品久久久久久| 色偷偷AV永久无码精品无码| 国产午夜福利红色一片精品| 亚洲影库日韩久久久| 亚洲aⅴ女人的天堂在线观看| 亚洲一区二区精品按摩| 四川少扫搡BBW搡BBBB| 日韩激情一级毛片| 欲色欲香天天影院亚洲第一香蕉狼人| 手机看片午夜福利| 乡村女教师艳妇欲爱| 杨幂喷水高潮在线观看视频 | 欧美激情在线播放一区二区 | 国产黄色三级三级三级| 狠狠噜天天噜日日噜视频跳一跳| 色天堂在线观看视频| 久久九九精品视频| 国产精品色片免费| jizz一区二区在线观看| 四虎国产在线| 日韩台精品电影在线观看网站免费| 18禁黄网站禁片无遮挡观看APP免费| 午夜国产一级大片免费观看| 久久九九精品视频| 91短视频在线观看污污污| 中文字幕 亚洲 一区二区三区| 4se人人视频在线| 一级做a爰片久久毛片潮喷无码 | 欧美黑人又粗又大又硬免费视频| 亚洲特级毛片无码免费观看| 无限看片的视频大全免费下载| 国产不卡免费在线视频| 亚洲中文字幕第一页adc| 国产亚洲成AⅤ人片在线观看| 中文字幕一本久久综合| 91精品无码4k岛国| 欧美日韩中字在线| 一区二区三区不卡中文字幕 | 浪潮国产精品久久久久?v浪潮| 香蕉在视频线精品视频| 日日摸夜夜添无码无码a∨| 日本天堂成人在线视频| 亚洲日韩欧美aⅤ精品| 欧美日韩aⅴ人妻| 国产亚洲精品系列| 我的好妈妈6高清在线观看| 亚洲一级特黄毛片| 久久久免费丁香五月| 2022v视频无码高清网站| 欧美一级欧美一级在线观看| 91精品国产高清一区二区三密臀| 韩国午夜理论a三级在线观看| 入禽太深在线色网视频5| 91影视在线观看| 亚洲人成人一区在线观看| 欧洲另类综合| 亚洲黄片账号免费| 久久国产这里只精品免费| 欧美一区二区三区福利网| 久久精品国产亚洲Vā香蕉| 成人欧美视频免费看黄黄| 综合亚洲高清国产| 成人高清影院| 日韩免费不卡视频1| 国产一级一极性活片免费视频| av中文字幕不卡无码| 爱丫爱丫影院电视剧免费| 天天草天天射| 国产一区二区三区三州在线观看 | 亚洲国产精品第一二三区 | 国产成a人亚洲精品无码性色| 日韩A∨无码综合久久五月| 国产AV三级精品成人网站| 欧美中文日韩综合在线视频| 成人国产欧美日本精品久久麻豆| 精品一区二区三区免费在线视频| 88AV葵司便利店侵犯堕落| 久久精品国产亚洲Vā香蕉| 一区二区三区av免费| 超碰97人人模人人爽人喝| 人妻精品久久一区二区| 人妻五月天精品婷婷| 日韩精品一区二区在线观看视频| 欧美精品日韩精品在线| 欧美图区另类小说熟女乱伦| 中文字幕人妻毛片av| 益日韩欧群交P片内射中文| 少妇一区二区三区精品| 色婷婷精品国产黑人一区二区三区| 相泽南作品在线观看| 亚洲人成日本片| 国产成人AV一区二区三区| 国产一级a毛一级a看免费视频国产suv精品一区二区6 | 久久久久国产精品嫩草影院| 日韓中文字幕無碼高清毛片 | 欧美黄色变态免费观看| 亚洲人成网站在线播放青春| 北条麻妃青青久久av| 91在线无码精品秘比基尼| 狠狠躁天天躁无码中文幕| 中文少妇无码影视| 久久久久av綜合網成人| 欧美日韩电影码国产| 成人毛片免费aa级| 成人亚洲狠狠一二三四区| 一区二区三区无码在线| 欧美一级二级三级网站大全| 亚洲精品免费影院| 我的好妈妈6高清在线观看| 综合 欧美 日韩 中文字幕| 亚洲欧美中文日韩v在线在线观看| 国产成人裸体片免费看| 被男狂揉吃奶胸高潮视频在线观看 | 久久久综合精品一区二区三区无码| 中文字幕无?v免费久久| 亚洲毛片精品二区| 日本三级久久| 国产精品久久秘 A级| 亚洲另类无码一区二区三区冫| 国产精品一二三级视频| 中文字幕不卡乱偷在线| 日韩av三级在线免费观看| 欧美中文日韩综合在线视频| 中文字幕一本久久综合| 欧美亚洲色综久久精品国产91| 欧美三级欧美成人高清www| 伊人色婷婷五月综合久久97| 亚洲狼人制服中文字幕| 校花高潮抽搐冒白浆| 一级理论片免费观看在线| 亚洲AV日韩AV高清在线播放| 前后夹击征服骚女完美爆 | 亚洲色大全在线视频观看| 精品国产亚洲人成在线传媒 | 男女无遮挡动态图| 亚洲精品国产导航一区二区 | 国产一级精品精品精品| 日本免费无码高清色倩片| 影视免费三级少妇| 香蕉精品视频一区二区三区| dy888午夜国产精品亚洲| 歐美成人久久久| 国产精品美女在线免费| 国产综合内射日韩久| 天堂资源中文在线地址bt| 少妇大胆瓣开下部自慰| 高清免费三级毛片| 草莓视频app下载18| 日韩精品老熟女视频网站免费观看 | 欧美激情一区精品| 国产高清吹潮免费视频| 美女视频黄频a免费高清不卡软件| 黑人巨大亚洲综合在线| 国产91黑人在线| 日本人69视频jizz免费看| 理论片在线免费观看| 日本二区在线中文字幕好看到停不下来！| 特级一级毛片视频免费观看| 亚洲av手机在线观看| 94人妻喷水视频在线| 日韩在线试看一区96丝袜| 国产欧美va欧美va在观看| 色99热久久99热国产精品| 又爽又黄又爽又刺激的视频| 91欧美激情一区二区三区成人日韩99久久综合狠狠综合久久 | 亚洲精品一区二区三区不| 五月天婷婷伊人久中文字幕| 亚洲爱潮AV永久无码浪潮AV| 精品国产成a人片在线观看| 人妻中文字幕无碼在线| 日本黄线在线视频免费看| 成人欧美精品久久久久影院| 成人午夜福利小视频| 一色一情一伦一区二区| 嘟嘟嘟大豆行情网www| 激情在线日韩欧美日韩| 欧美中文字幕网站免费| 国产97精品一区二区在线观看| 日本免码va在线看| 一区二区精品在线| 欧美日韩成人精品第一区| 日韩欧美偷拍人妻丝袜第一页| 亚洲a精品无码毛片色欲av| 成在线人免费视频播放| 国产免费人成视频不卡顿在线播放播 | 日韩偷拍一区二区三区| 日韩国产精品等最新内容！ | 亚洲色综合中文字幕在线| 国产成a人亚洲精v| 日韩床上特黄一级片| 精品国产?Ⅴ一区二区三区| 蜜臀久久精品国产亚洲av| 亚洲AV片在线观看高清小说| 99热国产这里只有精品99| 偷拍亚洲综合二区| 女人用炮机高潮合集视频播放 | 大地免费资源| 欧美精品日韩精品在线| 香港av无码播放一级毛片免费| 又大又粗又爽国产色欲AV| 亚洲911精品影剧| 国产在线高清无码视频| 中文字幕日韩亚洲视频在线| 18末成年禁止观看试看一分钟| 欧美gαy男男激情1069| jizz一区二区在线观看| 亚洲一区二区三区日韩国产| ac网站不卡免费在线观看| 欧美亚洲自偷自偷图片| 国产男女嘿咻视频在线| 国产成人午夜一级电影在线| 中文字幕新无码国产在线视频| 国产成人AⅤ免费观看| 无码区一二区mv| 国产一级做?爰片久久毛片野外| 综合亚洲国产日韩欧美在线| 欧美成人国产精品一区二区 | 夜鲁夜鲁夜鲁高清免费看| 日本午夜在线视频| 加勒比在线看毛片| 国产精品无码动漫| 夜夜欢av一区二区三区| 五月丁香婷婷成人网| 亚洲成色av网站午夜影视| 五月开心中文版在线观看| 欧美一区二区亚洲成人| 九九爱WWW无码人成| 亚洲无码三级片影院免费观看| 欧美精品在线观看不卡一区| 一区三区在线免费视频观看| 99RE8国产这里只有精品| 国产高清视频在线播放一区二区三区| 国产亚洲1卡二卡三卡4卡| 人妻有码中文字幕在线不卡| 男人扒开女人双腿猛进女人| 亚洲人看A∨免费片| 久久视频精品38线视频在线观看| 亚洲国产1区2区3区| 亚洲欧美日韩爱爱| 三级在线观看mmm| 在线观看xxxx国产| 亚洲美女在线免费视频| 国产精品有码无码脛∨在线 | 人妻蜜臀av一区二区| 菠萝菠萝蜜免费影视在线观看 | 北条麻妃青青久久av| 97人妻人人揉人人躁人人爽动漫 | 91麻豆一区二区在线观看| 中文又粗又大又硬毛| 成人无码视频在线观看| 日韩婬乱a一级毛片视频| 国产真实深喉口爆吞精视频| 欧美一级黄色免费在线观看视频 | 亚洲欧美日韩综合网导航| 久久国产福利一区二区三区 | A级成人婬片免费看无码| 日韩无码一区二区高清视频| 性XXXXX欧美老肥婆多毛| 国产精品酒店在线观看| 日本在线一区二区三区免费| 91久久国语露脸精品国产| 中文字幕人妻久久精品一区二区| 这里只有好看的a视频| 99久久免费只有精品国产在 | 亚洲精品国产专区在线| 欧洲亚洲激情TV中文字幕| 高清av中文字幕无码| 成人做爰视频www爽爽爽文章| 污污视频免费网站| 久久精品人妻一区二区三区一| 美女视频黄又黄又免费| 码 码加勒比国产在线| 国产精品素人亚洲国产| 精品乱伦欧美国产| 黑人巨大精品无码专区| 全免费a级毛片免费| 色欲洲av无码精品国产午夜亚色| 99尹人香蕉国产免费天天拍| 日韩色欲人妻无码精品av| 国产精品乱人伦丰满电影| 第三视频午夜福利| 少妇人妻中文字幕hd| 国产日韩欧美啪啪色| 好紧好湿好爽免费视频美女做| 欧美群交一区二区大吊曰大逼| 欧美中文字幕在线视频| 亚洲欧洲在线观看无码| 欧美一级高清首页蜜桃| 亚洲欧美中文日韩v在线在线观看| 国产一区二区三区不卡在线| 日韩床上特黄一级片| 一本久草综合| 日日澡夜夜澡人人| 久久精品国产亚洲av夜色九虎| 日韩三级片免费观看| 午夜最新电影| 精品国产三级AV在线视色| 超碰真人在线| 天堂网www天堂在线资源| aⅴ色窝窝男女爽爽a片| 夜夜添无码试看一区| 亚洲色图国产无码| 亚洲?V伊人久久综合密臀性色| 操小孩污视频在线免费观看| 国产特黄色一级| 国产精品乱人伦丰满电影| 欧美午夜在线观看免费完整版| 亚洲中文无码成人网| 精品免费在线欧美| 国产欧美va欧美va在观看| 国产成人在线看片| 最新欧洲日韩在线播放| 亚洲av成人在线观看| 亚洲欧洲国产精品香蕉网| 亚洲色综合亚洲?V伊人蜜桃偷偷| 久久久最近免费字幕中文大全| 亚洲日韩欧美aⅤ精品| 四川少扫搡BBW搡BBBB| 精品手机在线| 69式真人无码视频免费| 男人天堂日韩精品| 被男子脱掉内裤的美女视频| 国产白领勾搭外卖av| 亚洲va欧美a国产va综合| 亚洲一级视频中文字幕在线播放| 国产性夜夜春夜夜爽1a片| 中文字幕有码不卡| 一级做性色α爱片久久毛片色| 亚洲欧美日韩综合第一| 日本一区二区三区作爱视频| 日产一区二区三区精品视频| 国产一区二区三区在线观看色网站| 人人色人人干人操| 奇米777在线影视四色首页| 四虎影视国产免费| 插我一区二区在线观看| 女人19水真多免费毛片| 国产精品亚洲自拍| 美女制服で視頻網站| 久久99国产精品精品国产同意 | 成人免费在线观看高清视频| 亚洲va在线va天堂va国产2020| 国产精品a久久久久| 免费丰满少妇一级毛片| 午夜视频成在线人成在线人| 丝瓜草莓www在线观看| 6080YYY午夜理论片免费| 欧美一级黄色免费在线观看视频 | 国产精品羞羞答答| 国产精品小姐久久久久久| 国产成a人亚洲精v| 亚洲一区二区三区日韩国产| 一本久草综合| 成年午夜免费aⅴ在线观看| 日本高清在线视频无码| 无码中文字幕aⅴ免费费放| 国产高清乱码无卡女大生| 色夜av网午夜福利片| 五月开心中文版在线观看 | 在线观看片a免费不卡观看| 无码中文字幕aⅴ免费费放| 日本特黄特色大片免费在线观看| 曰本av无码免费不卡| 亚洲综合五月天激动情网| 激情婷婷丁香五月| 久久频这里精品香蕉久久| 性XXXXX欧美老肥婆多毛| 91欧美激情一区二区三区成人日韩99久久综合狠狠综合久久 | 虎白女粉嫩粉嫩的18在线观看| 五月天丁香色| 亚洲图片视频欧美日韩| 国产好大好爽久久久久久久| 精品亚洲精品在线观看| 先锋影音制服丝袜| 亚洲性爱视频网站一级看片 | 日本一区二区三区三州| 欧美人成一本免费观看视频| 欧洲亚洲成人精品| 亚洲国产精品第一二三区| 亚洲日本乱码在线观看| 在线观看自拍无码综合| 国产亚洲成AⅤ人片在线观看| 四虎国产在线| 大地免费资源| 人妻少妇蜜桃一区二区| 午夜亚洲国产精品不卡| 亚洲av中文aⅤ无码av电影| 亚洲日本一区亚洲影院| 熟女一区二区天天操夜夜操| 一区二区三区不卡中文字幕| 先锋影音制服丝袜| 韩日中文无码在线视屏| www.91大地资源二中文在线观看官网成全更新视频 | 韩国三级片在线播放| 国模欢欢销魂全过程| 久久九九精品视频| 国产精品亚洲欧美—级久久精品| 年轻的朋友3完整版在线观看| 亚洲丝袜在线观看| 天美传媒mv免费观看| 厨房里强摁做开腿呻吟动漫| 欧美日韩人成国产自产高清| 囯产精品99久久一区二区三区| 人妻仑乱少妇a级毛片| 搡老女人老妇老熟女50ⅹxxx| 久久精品国产亚洲A∨未满十八| 无码人妻侵犯一区侵犯| 日韩中文字幕欧美亚洲第一区 | 自拍欧美在线观看三级| 色婷婷亚洲综合五月| 一级特黄视频免费播放| 成人看片黄在线观看| 理论片在线免费观看| 日韩av手机在线观看不卡| 欧美日亚洲黄色网站在线观看| 国产精品视频毛片| 国产欧美一区二区日本加勒比| 天天做天天欢摸夜夜摸狠狠摸| 精品国产午夜肉伦伦影院| 久久免费看少妇高潮XXX| 亚洲va欧美va国产va天堂影| 成人性毛片免费观看黄| 中文字幕精品三级视频| 1024手机在线国产你懂的| 免费国产一区二区8X| 波多野结衣午夜福利| 国产一边做一边爱视频| 年轻的朋友3完整版在线观看| 惠民福利国产精品无码aV一区二区三区 | 成人久久免费视频| 国产乱婬AV麻豆剧传媒牛牛影视| 国产免费一级视频播放| 香蕉视频久久免费直播| 大香蕉久久综合在| 午夜福利在线免费看| 欧美成人精品一区二区男人看 | 日韩免费高清一级毛片久久| 欧美日韩二区视频| 欧美亚洲免费播放一区| 亚洲精品无码av国模| 免费一级毛片在线播放放| 欧美精品v日韩精品v| 国产片精品mv在线观看| 97一区二区在线播放| 人妻一区在线播放| 欧美成人香蕉在线视频| 俄罗斯aaaaa特级毛片| 特级西西西4444大胆无码| 国产69久久精品成人必看| 91国自产拍在线天天更新| 日本精品在线免费观看| 亚洲中文字幕在线有码| 国产精品欧美久久久无广告| 超碰成人在线91| 蜜臀久久精品国产亚洲av| 在线免费观看a级片| 成人无码av一区二区三区| 亚洲欧美日韩国产一区在线| 亚洲AV综合色区无码区| 亚洲伊人成久久综合网| yy111111少妇影院无码光屁股| 91精品国产高潮久久久久| 99热国产这里只有精品99| 国产精品www在线观看| 美国日本韩国精品在线| 草莓视频免费在线看| 国产偷窥成熟女精品视频| 免费观看丰满少妇一级毛片| 狠狠久久久精品| 国产一国产精品免费播放| 东北老熟女高潮大声叫痒视频| 日本午夜色噜噜| 亚洲国产的精品太乱码一区二区| 国产午夜福利精品一区二区久久| 野外一级爱做片免费观看| 无码A∨高潮抽搐流白浆8MAV| 天天摸日日摸狠狠添高潮喷| 欧美性爱福利视频| 免费国产一区二区8X| 惠民福利黄色成人网站免费无码av| 欧美国产第一区| 黄片视频免费国产| 蜜臀久久精品国产亚洲av| 91国自产拍在线天天更新| 国产一级精品精品精品| 日本在线视频色综合| 日韩色系视频在线观看| 国产精品中文一区二区三区| 久久男女性高爱潮免费网站| 久久66热偷产精品| 美国日本韩国精品在线| 黄片软件免费下| 亚洲午夜一级精品| 日韩视频在线观看免费6080| 精品国产女主自在线久草| 亞洲A∨精品一區二區三區下載| 辣妹子影院电视剧免费播放视频大全在线观看| 精品无码人妻遭多人侵犯Av | 91精品国产福利久久| 一区二区毛片视频免费看| 亚洲精品一级在线播放| 国产韩国一区二区三区| 久久精品国产99国产精品严洲| 99热在线观看免费精品| 欧美经典复古伦理在线| 国产熟女精品视频国语| 车里要了好多次天天影院网| 国产αV无码日韩αV无码网站| 最新无码不卡手机在线视频| 老师解开乳罩喂奶我脱她内| 好姑娘10影视剧在线观看| 欧洲国产精品sss在线观看av| 日本免码va在线看| 18进黄址app最新版| 欧美阿v高清资源在线| 无码国产福利av私拍导航| 亚洲天堂久久精品9966| 草莓视频app下载18| 国产色精品vr一区区三区| 国产制服在线视频| 亚洲欧洲日本三级视频| 制服丝袜美腿 AV影院| va中的国少妇偷人HD| 麻豆国产AV超爽| 欧美视频在线观看精品一级 | 国产高清视频在线播放一区二区三区 | 国产激烈刺激网站免费观看| 玩弄粉嫩少妇高潮出白浆AⅤ| 国产午夜福利在线播放87| 国产聚色窝在线首页| 女人19水真多免费毛片| 五月婷婷丁香综合| 正在精品视频第一页| 国产亚洲A v手机在线观看| 国产乱婬AV麻豆剧传媒牛牛影视| 成人国产精品视频| 亚洲s码欧洲m码一二三区| 在线国产视频一区二区三区| 国产av亚洲v天堂av| 免费成人一级毛片电影| 黑人巨大亚洲综合在线| 午夜性爽视频男人的天堂在线| 国内精品自线一区二区2021| 超碰97人人模人人爽人喝| 步兵精品手机在线观看| 国产又黄又爽又大的免费视频| 中国国模无码AV| 日本一区二区三区三州| 久蕉在线视频免费精品| 鲁丝片一区二区在线观看| 国产又黄又爽的免费视频| 99久久久国产免费观看精品| 69精品久久日日躁夜夜躁| 91麻豆精品国产自产91成人久久| 99国内精品久久久久久| 黄到让你下面湿的视频| 亚洲国产在线精品国自产拍影院| 国产av网站高跟丝袜| 免费电影AV网站| 亚洲一区二区精品按摩| 一级婬片一级视频| 天堂资源中文在线地址bt| 免费黄色资源| 久久99热免费精品久久| ..亚洲欧美日韩成人高清在线一区| 最新国免费看黄a级毛片| 二次元人物桶二次元人物免费网站 | 88AV葵司便利店侵犯堕落| 91果冻精品国产自产自产在 | 九一视频免费版污| 啦啦啦www在线观看免费视频动漫| (愛妃視頻)无码精品人妻一区二区三区中| 曰本av无码免费不卡| 亚洲专区日韩中文在线 | 亚洲视频在线观看免费一区| 美腿丝袜诱惑一区2区| 曰本av无码免费不卡| 久久精品人妻中文系列葵司| 欧美亚洲日韩国产中文在线| 国产经典无码在线免费看| 女性喷液过免费视频| 亚洲aⅤ无码国产片| 具有黄桃视频在线观看高清免费| 久久综合第一页无码97| 91久久打屁股調教網站| 亚洲熟妇av一区二区三区痴汉| 国产一级婬片免费播放电影 | 国产99热在线露出| 黄色视频在线观看视频网站| 久久电影午夜鲁丝片无码| 91久久打屁股調教網站| 91k国产在线观看尤物| 永久免费观看的片毛视频| 一起嗟嗟嗟免费观看短片| 黑人又粗又大XXX精品| 欧美一级欧美一级在线观看| 久久久久久久久久久国产| 国内精品久久久久久婷婷| 欧美日韩性视频在线| 一色屋精品无码免费视频| 国产精品香港三级国产| 超碰97人人天天夜夜| 精品精品男人的天堂在线| 一级无码国产片手机版| 色婷婷亚洲综合五月| 国产精品视频毛片| 国产99视频免费精品| 中文字幕新无码国产在线视频| 91xav在线免费观看| 免费精品一区二区中文字幕 | app搞鸡视频在线观看黄色| 少妇系列中文字幕一区| 韩国无码在线| 女性喷液过免费视频| 国内精品久久99人妻无码特黄| 无遮挡18禁啪啪免费观看| 日产无人区一线二线三线公司| 亚洲AV片在线观看高清小说| 亚洲国产精品久久一线APP| 天天摸日日摸狠狠添高潮喷| 亚洲性爱A不卡| 久久一区二区美女视频网| 日韩AAAA级无码专区免费| 又脱又摸下面激烈免费视频| 91天堂一区二区三区在线| 亚洲国产视频二区| 三级在线观看mmm| 国产精品亚洲综合每日| 在线亚洲資源免費看| 久久久最近免费字幕中文大全| 日本丰满护士bbw| 亚洲欧美一区二区三区69| 手机在线日本视频| 美女美女一区二区三区| 成人片在线观看亚洲欧美| 亚洲色图一区二区的| 青青青精品大杳蕉| 九色91POPNY蝌蚪新疆| 亚洲欧洲在线观看无码| 国产一国产精品免费播放| 亚洲精品免费影院| 国产精品麻豆综合在线| 中文字幕有码无码人妻?V蜜桃| 日韩毛片午夜在线观看| 日韩精品亚洲专区在线影院| ..亚洲欧美日韩成人高清在线一区| 亚洲精品日韩专区在线观春| 好姑娘10影视剧在线观看| 成人午夜精品網站在線觀看| 人妻撑开合不拢流出白浆视频| 天堂av2017男人的天堂| 少妇熟女高潮流白浆| 91好色先生下载污| 一级毛片大学生九九精品视频| 国产亚洲精品系列| 亚洲色拍国产另类| 久久精品視頻只有這里| 日本黄色影片在线观看| 亚洲欧美精品国产电影| 国产成人精品一区二三区韩国| 精品国产成a人片在线观看| 男女做爱视频在线观看| 中文无码一区99xav| 一进一出把女子干的全身抽搐| 国产指交视频在线观看| 曰本av无码免费不卡| 亚洲va欧美va国产va天堂影| 1024大香蕉手机看片| 亞洲國產精品不卡在線電影| 波多吉野一区二区三区av| 久久一区二区美女视频网| 亚洲成人激情在线观看| 国:产一级黄色电影| 日韩国产欧美日韩一区二区久久 | 高清国产在线日韩欧美| 国产亚洲欧洲日韩在线三区| 亚州中文字幕| 国产真实迷奷系列在线看| 色吧超碰97人妻| 一级做a爰片久久毛片免费看| 国产成人精品亚洲二区| 日本三级一区二区三区| 欧美中文字幕网站免费| 国产av自拍播放| 激情丝袜美女视频1区| 歐美成人久久久| 国产偷窥成熟女精品视频| 免费看一级a女人自慰青春网| 久久精品99毛片免费| 97人人超人人超碰超国产| 国产私人尤物无码不卡| 日韩成人手机午夜在线播放网站| 日韩精品成人蜜桃| 中文字幕日韩亚洲视频在线| 春色 都市 亚洲 小说区| 久久久久久免费免费麻辣| 全免费a级毛片免费| 精品无码作爱无码视频| 精品国产第一页动漫| 色婷婷精品国产黑人一区二区三区| 成人亚洲色欲色一欲| 拔萝卜视频直播下载| 91久久精品美女高潮| 九九在线观看高清免费| 无码不卡毛片视频免费播放| 亚洲欧美精品日韩片| 国产无码不卡视频| 国产片精品mv在线观看| 亚洲成人一线二三线在线观看| 久久五月一区二区精品| 亚洲熟妇真实自拍另类| 国产精品色哟哟免费看麻豆| 一区二区三区不卡中文字幕| 中文字幕一区在线观看视频| 亚洲综合无码一区二区三区四区| 无遮挡18禁国产精品| tobu8 天堂网www中文在线| 国产偷窥成熟女精品视频| 我的好妈妈6高清在线观看| 国产性欧美疯狂猛交69hd| 国产看片在线观看一区| 中文字幕新无码国产在线视频| 精品99视频国产免费尤物| 欧美一级aa大片免费看视频 | 中文字幕亚州欧美专区| 成人3d动漫一区二区三区| 国产免费人成视频不卡顿在线播放播| 欧美男女精品一区二区| 熟妇av日韩不卡| 6080YYY午夜理论片免费| 日韩一区二区三区四区在线播放| 性奴秘书裸侍跪趴等主人玩| 国产羞羞视屏在线观看| 偷拍视频国内久久精品| 免费A级特黄片日韩精品| 亞洲A∨精品一區二區三區下載| 一区欧美激情桃花| 老师解开乳罩喂奶我脱她内| 欧美午夜在线观看免费完整版| 久久亚洲欧美精品一| 午夜福利啪爽国产片精品| 内裤堵嘴app高清| 一级毛片av一区| 久久久亚洲成人aⅴ| 嫩模自慰一区二区三区动漫| 国产精品白丝久久久| 永久免费观看啪啪网站欧美| 国产无码喷水| 日本一本高清在线观看视频亚洲一区二区三区| 天堂资源中文在线地址bt| 五月天婷婷伊人久中文字幕| 色天堂在线观看视频| 男人的天堂亚洲一区二区无码| 国产影视乱伦三级| 免费萌白酱国产一区二区三区| 在线亚洲欧美日韩国产| 绿巨人聚合app入口| 18勿看免费大片1000拍拍| 自拍日韩葡萄影院视频在线播放| 人妻中文字幕专区| 午夜精品一区二区三区国产色欲| 国产黄色一级片在线观看无码高清| 国产一区二区三区精品免费播放| mmuu55首页 日本系列| 日韩高清一区二区第50页| 欧美激情在线播放一区二区| 国产人妻高清国产拍精品| 毛片一区在线播放| 欧美视频在线观看精品一级 | 444kk免费看片在线观看| 色婷婷久久精品网| 四虎sihu新版影院亞洲精品| 亚洲熟妇无码AV| 黄色一级视频| 91香蕉视频一区二区在线观看国产b站视频 | 老赵揉着粉嫩的双乳太舒服了秀婷| 亚洲天堂久久精品9966| 一本色道無碼道dvd在線觀看| 女性喷液过程高清免费视频| 成人精品aaa亚洲丝袜在线观看| 久久婷宗和五月天网拍| 四川少扫搡BBW搡BBBB| 国产精品白丝久久久| 精品成在人线AV免费| 妓女网一区二区| 国产av网站高跟丝袜| 成人丝袜18秘 视频在线观看| 国产99视频免费精品| 福利姬白浆AV导航| 亚洲日本精品va中文字幕 | 久久久精品午夜免费不卡91| 精品日韩久久一区| 熟妇久久综合中文色鬼| 免费最婬荡荡谢毛片午夜剧场| 亚洲 自拍 色综欧美合图区| JK白丝高中小仙女自慰| 亚洲无码高清免费视频亚洲| 欧美性受XXXX黑人猛交视频| 国产在线观看91精品| 国产美女裸乳无遮挡网站| 国产精品66婷婷伊人五月| 久久综合第一页无码97| 欧美成人aa久久狼窝五月| 国产精品熟女第7页| 91老师秘片黄在线观看| a毛片免费全部播放吃| 亚洲无码高清免费视频亚洲| 精品综合在线99亚洲青草91| 伊人影院在线播放| 美女视频黄频a免费高清不卡软件| 最新午夜男女福利片视频| 国产精品免费播放器大全| 国产AV三级精品成人网站| 18末成年禁止观看试看一分钟| 影视久久夜色国产精品噜噜噜| 最新国产成人精品区在线观看| 成人毛片视频亚洲| 日本电影中文字幕久久| 黄片视频A级大全| 羞羞视频APP下载网站| 国产又爽又黄免费网站| 日韩免费AV无线在码| 国产精品无码久久A∨不卡| 一区三区在线免费视频观看| ?V无码小缝喷白浆在线观看| 国产精品人人爽人人做| 国产强上视频在线观看| 亚洲日本韩国成人在线视频| 国产天天精品视频| 视频一区亚洲专区| 91亚洲色欲国色天香| 国产亚洲A v手机在线观看| 欧美日韩国产激情另类| 午夜网站黄色在线观看免费完整高清观看 | 欧美亚洲国产手机在线dvd| 欧美日韩成人精品第一区| 激情依依av男人的天堂| 久久精品国产AⅤ无码| 天天摸日日摸狠狠添高潮喷| 久久电影午夜鲁丝片无码| (愛妃精選)免费无码毛片一区二区| 蘑菇成品人app下载| 亚洲国产永久视频免费看| 久久久精品3d动漫一区二区三区| 亚洲欧美日韩精品久久久一区二区| 成人高清影院| 一区二区毛片视频免费看| 女佣的味道hd中字在线观看| 国产免费牲交视频38禁| 臭小子快拔出来我是你嫲视频 | 色男人窝网站聚色窝| 91香蕉依人综合久久| 亚洲欧洲国产韩国va在线| 91久久国语露脸精品国产| 最新无码国产在线视频2023| 88AV葵司便利店侵犯堕落| 大香蕉久久综合在| 国产尤物A∨尤物在线观看| 亚洲午夜一级精品| 成人无码视频在线观看| 久久久久亚洲精品免费| 亚洲一区二区麻豆AV| 日日夜夜摸多人换着玩| 久久精品成人免费看| 日本无遮挡h肉动漫在线观看| 亚洲人妻久久无码| 成人片在线观看亚洲欧美| 久久99热免费精品久久| 中文又粗又大又硬毛| 18观看免费永久视频| 91在线无码精品秘九色APP| 国产精品厕所偷窥盗摄av| 妓女网一区二区| 国产成人69天堂| 国产精品色片免费| 久久精品国产亚洲最新国产| 日韩精品熟女AA久久毛片| 久久精品国产亚洲av天美18| 欧美日在线观看视频| 亚洲中文字幕在线观看视频特物资 | 久久亚洲av成人网| 日韓歐美一區二區三區不卡 | 久蕉在线视频免费精品| 国产精品激情欧美可乐视频| 久久精品国产AⅤ无码| 亚洲精品日韩专区在线观春| 人妻精品久久一区二区| 人妻中出中文字幕資源免費看| 爱丫爱丫影院电视剧免费| 久久亚洲精品少妇| 欧洲免费在线视频| 在线观看精品成人综合视频| 一级做性色α爱片久久毛片色| 99热手机在线最新地址| 最新全集网电影免费在线看| 日韩欧美一区二区三区成人精品 | av一av无码免费观看| 国产精品AV毛片免费看观看| 日本久久一区二区免费| 色噜噜中文网在线| 日日夜夜摸多人换着玩| 人妻仑乱少妇a级毛片| 中文字幕乱码亚洲影视亚洲日本va午夜 | 国产亚洲欧美ai在线看片| 成人av免费网址在线观看| 后入式肏大屁股眼免费视频| 精品国产女主自在线久草| 在线看片免费视频国产五月天| ac网站不卡免费在线观看| 亚洲熟妇无码AⅤ不卡在线播放| 宝可梦沙奈朵口吐白色液体| 国产激情在线91| 中文字幕电影一区在线观看| 国产极品午夜在线观看| 国产一级普通话农村毛片| 欧美激情在线播放一区二区| 中文字幕久久久久一区| 午夜精品九九九九99蜜桃| 国产精品欲AV麻豆网站| 亚洲va欧美va人人爽老师| 国产精品www在线观看| 亚洲农夫色无码在线| 一级毛片av一区| 国产超碰97老师人人看| 99精品欧美一区二区蜜桃美图| 亚洲中文字幕丁香婷婷| 1024在线看片你懂的| 成人无码视频在线一区| 人妻有码中文字幕在线不卡| 久久人人爽人人爽av片 | 久久亚洲乱码一区| 国产一级免费视频观看| 缅甸恐怖网站lomando| 日韩黄色高清视频| 亚洲日韩精品综合| 国语对白久久精品视频| 国产亚洲精品精品在线精品| 日本久久高清一区二区三区| 七月亚洲天堂av中文在线官网| 午夜亚洲乱码伦小说区| 国产亚洲h网综合h网久久| yy111111少妇影院无码光屁股| 最近在线中文字幕更新| 国产情侣实拍在线播放| 亚洲av无码网站yw尤物| 最新av网站网址免费观看| 国产香蕉精品视频| 欧美一级aa大片免费看视频| 午夜国产一级大片免费观看| 973午夜伦伦电影论片| 字幕大全网址撩人精品磁力视频二区 | 国产精品无码αV片在线观看播放| 孕妇动漫精品国产一区二区三区| 在线a亚洲v天堂网2018影| 国产精品看片在线| 越南女子杂交内射BBWBBW| 亚洲国产一区二区三区在线播放放| 久久精品国产精品亚洲艾草| 自拍欧美在线观看三级| 亚洲午夜久久久久无码| 最近在线中文字幕更新| 青青青国产免费手机视频在线观看 | 九色91POPNY蝌蚪新疆| 日本中文精品在线观看| 奖励网站正能量www正能量| 超碰真人在线| 国产欧美一区二区日本加勒比 | 6080精品人妻一区| 五月天丁香色| 国产尤物A∨尤物在线观看| 日本免费AⅤ乱码高清专区| 精品免费在线欧美| 秋霞影院韩国伦片在线播放| 免费A级毛卡片不收费视频| 亚洲中文字幕在线观看视频特物资| 伊人色婷婷五月综合久久97| 亚洲AV秘 无码一区二区久| 最新午夜男女福利片视频| 亚洲黄片账号免费| 日韓歐美一區二區三區不卡 | 国产在线视频一卡| 国产av自拍播放| 青青青精品大杳蕉| 亚洲尤物永久无码AV毛片| 亚洲一级av无码中文字幕| 我的漂亮女房东完整版在线韩剧| 欧美亚洲自偷自偷图片| 国产一二一成人观看| 日韩欧美一级成人片免费| 谁有操逼毛片网站| 久久蜜精品国产AV网站| dy888午夜国产精品亚洲| 亚洲午夜久久免费| 国产一级大片免费视频| 无码人妻不卡久久一区二区| 思思热视频精品在线观看| 中文无码一区99xav| 黄色午夜网站| 在ktv上班被客人吃奶头| 奇米777四色欧美精品| √天堂亚洲国产传媒在线观看| 疯狂做受ⅩXXX高潮欧美| 亚洲日本欧洲综合| 日韩AV无码一区二区三区不卡开心久久婷婷综合中文字幕 | 免费精品无码成人片在线观看| 亚洲av中文aⅤ无码av电影| 日本美国一级大片| 91天堂一区二区三区在线| 冯仰妍破处门| 亚洲影视AV一二三| 黑人巨大精品无码专区| 欧美日韩成人精品第一区| 把腿张开乖我添你3p| 久久九九精品视频| 国产一线在线观看| 亚洲成人一线二三线在线观看| 久久久久免費精品視頻| 四虎影视国产免费| 国产精品亚洲精品91| 车里要了好多次天天影院网| 国产国产成人久久精品杨幂| 国产欧美久久一区| 国产免费福利片在线视频| 一区二区三区欧美午夜免费| jizz成熟丰满老女人| 亚洲色欲或高潮影院伊人| 国产 无码 免费| 国产欧美精品一区二区粉嫩| 亚洲尤物永久无码AV毛片| 欧美黑人又粗又大又硬免费视频| 久久久7777888精品| 性XXXXX欧美老肥婆多毛| 中文字幕有码欧美精品| 年轻的朋友3完整版在线观看| 成人无码av一区二区三区| 91在线无码精品秘比基尼| 最新无码国产在线视频2023| 日韩三级久久| 中文字幕 亚洲 一区二区三区| 前后夹击征服骚女完美爆| 国产午夜一区二区在线观看m| 桃子视频APP在线下载污| 在线观看麻豆| 他一边曰一边吃我奶头| 污视频网站日本免费| 亚洲一区日本在线| 亚洲欧美制服专区| 91果冻精品国产自产自产在| 99热在线观看免费精品| 亚洲AV乱码一区二区三区| 免费丰满少妇一级毛片| 亚洲人成日本片| 国产一级久久女人毛片| 亚洲成片观看四虎永久网站| 成人AV综合一区二区三区| 日韩午夜不卡在线看| v影院一区二区三区自产不卡视频| 国产毛多水多女人A片色情| 精品综合在线99亚洲青草91| 亚洲手机在线成人| 天堂成av午夜电影| 久久久久亚洲精品中文字幕天堂 | 国产女生自慰a级毛片| 天美传媒mv免费观看| 999免费观看四虎精品国产| 又黄又爽免又刺激费视频网站| 亚洲欧美中文李幕高清在线| 亚洲欲色欲色XXXXX在线小说| 国产免费牲交视频38禁| 成年人视频久久免费| 欧美一区手机在线观看视频| 91视频污APP色版下载| 中文字幕一区日韩无码| 黄色a级视频免费播放| 日韩精品中文字幕一区二区污污视频| 高清偷自拍亚洲精品三区| 国产精品青青草原免费无码中国| 五月开心中文版在线观看| 国内一区二区三免费视频| 欧美大乳中文字幕在线| 亚洲人成aⅴ在线播放橙子| 日本人妻最新在线中| 欧美国产直接看的精品A视频| 九九热最新国产视频| 亚洲一区二区精品久久av女优| 三级日韩在线不卡| 99RE6国产精品99RE在线| 一级特黄视频免费播放| 國產精品99久久| 狠狠cao免费视频| 国产∨a在线观看免费| 美女自卫慰视频福利喷水| 国产97精品一区二区在线观看| 草草影院欧美三级日本| 亚洲AⅤ成人综合网伊人APP| 久久久久久久女国产乱让韩| 国产三级在线视频播放线| 久久er热这里只有国产中文精品| 无码视频一区二区三区六区| 无码日韩做暖暖大全免费| 国产精品乱人伦丰满电影| a毛片免费全部播放吃| 撕掉英语老师的黑色蕾丝内衣| 一级毛片大学生九九精品视频| 国产在线看av不卡无码网站免费| 办公室a片在线观看| 久久久久久亚洲精品电影| 久久精品国产亚洲av夜色九虎| 欧美牲交?欧美牲交| 香港av无码播放一级毛片免费| 被cao哭高H调教1v1H| 人人色人人干人操| 欧美牲交?欧美牲交| 日韩午夜不卡在线看| 日韩美女粉嫩小泬在线精品| 欧美激情诱惑在线观看| 国产十八禁在线观看十八禁宿舍 | 日韩欧美一卡二区| 100款禁用黄台网站小黄鸭| (愛妃視頻)无码精品人妻一区二区三区中| 1精品啪国产在线观看免费牛牛| 越南女子杂交内射BBWBBW| 黄色片久久美女啊啊啊内色| 亚i洲成色在线综合网站| 久久久免费丁香五月| 韩国激情三级做爰观看极限| 久精品视频在线播放网站| 日本强伦姧人妻完视频正版| a免费在线观看| yw尤物久久国产综合| 亚洲精品日韩专区在线观春| 国产精品男人在线播放| 国产一级久久女人毛片| 欧美三级直播美女视频在线观看| 五月婷婷丁香综合| 国产Av激情久久无码天堂| 欧美色吧久久综合| 69国产成人精品午夜在线| 亚洲欧美一区二区三区69| 亚洲精品日韩专区在线观春| A级成人婬片免费看无码| 久久人人爽人人爽av片| 成人国产经典精品视频| 精品国产一级黄色片| 天天噜夜夜噜狠狠噜| 欧美黄片十分钟不卡一区| 又爽又黄又爽又刺激的视频 | 国产无码不卡视频| 黑人巨茎大战俄罗斯白人美女| 狼人一区二区精品久久| 欧美综合色网| 国内精品视频天天在线观看| 国产另类欧美自拍日韩综合| 丰满少妇强烈进入高清视频| 日韩成人在线视频观看苍井空| 久久久7777888精品| jizz成熟丰满老女人| 午夜网站黄色在线观看免费完整高清观看| 国产第页日本草草影院香蕉| 中文字幕亚州欧美专区| 亚洲日韩精品综合| 98bb国产精品视频| 日韩视频 中文字幕在线看| 绯色AV视频精品一区二区| 人妻五月天精品婷婷| 好爽快点我受不了了视频| old老太videos老妇中国| 快描人成app免费| 影音先锋+高潮+痉挛| 久久天天躁狠狠躁夜夜躁综合 | 少妇的丰满3中文字幕电影| 无码av蜜桃av色欲| 精品在线观看免费一级毛片| 免费观看又色又刺激的视频| 二区三区精品| 久久久免费丁香五月| 亚洲成片观看四虎永久网站| 国国产精品V欧美精品∨日韩| 成人高清影院| 亚洲精品色无码一二三区| 伊人久久香综合蕉五月天| 亚洲国产精品 制服丝袜| 欧美激情aⅴ精品一区二区高清 | A欧美亚洲日韩在线观看| 被男子脱掉内裤的美女视频| 亚洲国产日韩欧美综合在线一区二区三区| 欧美色图一区二区| 黄色一级视频| 日韩在线试看一区96丝袜| 亚洲特级毛片无码免费观看| 跪趴着被主人狠狠调教| 欧美在线三级艳情网站亚洲成人99 | 亚洲第一aⅴ天堂在线观看| 国语对白久久精品视频| 国产午夜福利在线观看| 亚洲av永久无码偷拍另类 | 99ER这里只有精品视频8| 越猛烈欧美xx00动态图带声音| 国产精品www在线观看| 欧美亚洲日韩国产中文在线| 97久久久人妻一区精品| 亚洲色图在线视频| 欧美日韩一二区在线观看| 在线综合亚洲欧美成人影院| 欧美亚洲日韩国产中文在线| 亚洲自拍偷拍午夜福利| 免费+无码+国产www| 久久久综合精品一区二区三区无码| 久久无码āV中文出轨人妻| 国产成人av国语在线| 久久网无码一级毛片| 了解最新午夜福利无码在线观看视频一区二区 | 波多野结衣迅雷下载| 久久久久久久国产精品视频| 日韩在线精品一二三区| jk制服白丝喷水视频开放| 欧美一级视频高清片| 国产精品.久久久| 天堂av2017男人的天堂| 久精品视频在线观看免费| 亚洲午夜福利精品一区| 94人妻喷水视频在线| 欧美成人国产精| 动漫播放在线国产成人| 午夜精品九九九九99蜜桃| 国产真实乱子伦| 国产成人AV一区二区三区| 又脱又摸下面激烈免费视频| 最新无码国产在线视频2023| 亚洲伊人成久久综合网| 国产成人精品在线不卡| 艳妇荡乳欲伦2中文字幕| 亚洲国产精品久久一线APP| 精品一区二区久久久久久久网站| 9色丨porny丨人妻| 精品视频卡1卡2卡3| 亚洲MV国产MV在线MV综合试| 青青草无码精品伊人久久网站| 欧美在线三级艳情网站亚洲成人99 | 国内精品久久久久久婷婷| 日韩欧美国产免费一二三区| …久久精品99久久香蕉国产| 国产精品va在线观看my | 亚洲国产精品成人一区二区小说| 97一区二区在线播放| 国产1区2区精品自拍| 九九免费喷水视频| 久精品视在线中文字幕| 精品国产99国产精2021| 日韩AⅤ在线免费观看| 国产AV三级精品成人网站| 欧美亚洲日本色图片网| 亚洲午夜久久久久无码| 国内a级毛片免费观看| 国产情侣自拍AV在线播放| 中日韩产精品1卡二卡三卡| 精品国产午夜肉伦伦影院| 9色丨porny丨人妻| 宋雨琦ai人工智能造梦| 国产超碰97老师人人看| 色情无码WWW视频无码区| 三浦恵理子息与子中文字幕| 亚洲欧美一区电影| 日本天堂成人在线视频| 日韩一区二区在线视频| 一区二区三区四区在线免费观看 | 国产麻豆精品成人毛片| 成人国产一区| 1区3区4区产品乱入视频| 国产精品.久久久| 香蕉在视频线精品视频| 高清av中文字幕无码| 在线观看91精品国产2021| 国产成年男人裸j网站| 27报视频十八禁| 日本无码一区AⅤ二三区超碰| 狠狠色狠狠色綜合久久第一次| 阿牛影院在线观看视频| 日韩精品中文字字幕有码专区| 夜色www中国精品视频网站| 日韓三級電影在線觀看| 67194在线观看熟妇 | 亚洲第一天堂日韩| 中文字幕一区二区高清精品久久久| 午夜免费一级av福利毛片| 377p欧洲日本亚洲大胆噜噜| 国产精品青草婷婷| av大片在线观看| 99国内精品久久久久久| 久久精品人妻中文系列葵司| 国产精品久久久久久成人热AV| 男人J桶进男人屁股过程| 精品国产网红主播在线观看| 国产福利甜味弥漫精品tv一区 | 国产人与禽ZoZ0性伦69| 高清区一区二区在线播放| 亚洲中文字幕不卡无码| 国产成人在线免费网站| 欧美日韩主播国产视频| 亚洲色资源先锋在线观看| 亚洲永久精品ww47 91一区| 中文字幕精品三级视频| 久久男女性高爱潮免费网站| 孕妇动漫精品国产一区二区三区| 亚洲欧洲日产韩国夜夜高潮| 亚洲国产一卡2卡3卡4卡精品| 亚洲三级视频在线播放| 亚洲中文婷婷丁香五月天| 国产第页日本草草影院香蕉| 久久大屁股白浆一区二区| 久久99人妻精品涩爱噜噜噜蜜臀 | 成在线人免费视频播放| 久久婷宗和五月天网拍| (愛妃精選)免费无码毛片一区二区| 黄色一级国产精品| 国产又粗又大又硬又爽免费视频| 国产91黑人在线| 日本人妻最新在线中| 秋霞在线手机国产在线| 国产指交视频在线观看| 在线观看免费综合亚洲| 久久久久久av无码专区| 免费综合日本中文| 夜夜欢av一区二区三区| 国产免看一级a一片成人AⅤ| 欧美群交一区二区大吊曰大逼| 亚洲资源中文字幕| 青草影院内射中出高潮| 人妻少妇精品久久人妻| 中文字幕有码欧美精品| 日本天堂影音资源在线观看| 最近在线中文字幕更新| 色婷婷综合激情蜜桃tv| 亚洲中文无码日韩A∨精品亚洲免费观看网 | 欧美三级欧美成人高清www| 一区二区三区四区在线免费观看| 日产精品一二三四区国产亚洲| 完整版av片永久免费| 亚洲 欧洲 日产 专区| 亚洲国产精品香蕉视频| 国产精品美女白丝自慰| 白丝紧致爆乳自慰喷水玩具动态图| 免费黄色小说视频| 欧美视频在线观看精品一级| 人妻中文字幕无碼在线| 国产又粗又长又爽黄又硬视频| 欧美视频在线观看精品一级| 国产又黄又骚又猛欧美| 国产成人裸体片免费看| 亚洲一卡2卡三卡4卡127.0.0.1| 中文字幕日產a片在線看| 亚洲av久播在线观看| 国内一区二区三免费视频| 国产一级a毛一级a做免费高清视频| 中文字幕亚洲无码色网视频| 亚洲精品性美腿丝袜电影| 我的好妈妈6高清在线观看| 色婷婷精品国产黑人一区二区三区| 免费观看60秒做受视频| 在线喷白浆在线视频| 日韩美女粉嫩小泬在线精品| 日韩精品老熟女视频网站免费观看 | 日韩精品毛片无码一区| 欧洲亚洲日本大胆色噜噜| 久久精品波多野结衣中文字幕| 无遮挡18禁国产精品| 无码一级午夜福利区久久浪潮av| 日本免码va在线看| 欧美A级毛片免费播敢| 亚洲精品肉丝袜久久| 又大又粗又爽国产色欲AV| 久久久综合精品一区二区三区无码| 很很鲁免费视频在线观看| 啪一啪鲁一鲁2019在线视频| 国产片精品mv在线观看| 轻轻色国产在线视频| 亚洲 欧洲 日产 专区| 亚洲精品国产导航一区二区| 日韩欧美偷拍精品一区| 欧美亚洲免费播放一区| 综合 欧美 日韩 中文字幕| 最近最中文字幕视频| 在线观看免费人成视频色9| 精品动漫中文字幕一区| 青娱乐精品视频在线免费观看| 亚洲av成人在线观看| 99久国产久精品视频| 欧美日韩精品区久久久| 久久精品亚洲精品五月色| 国内真实刺激对白自拍视频| 亚洲色大全在线视频观看| 国产精品麻豆一区二区三区v视界| 亚洲欧美日韩国产一区在线| 惠民福利黄色成人网站免费无码av | 色综合久久综合中文综合网| 亚洲av无码不卡无码| 熟妇av日韩不卡| 91香蕉视频黄版下载| 精品综合国产亚洲欧美久久| 亚洲精品种子网站在线观看| 最新无码不卡手机在线视频| 最新无码国产在线视频2023| 久久精品亚瑟全部免费观看| 岳乳丰满一区二区三区| 成人自拍视频在线观看| 国产黄色一级片在线观看无码高清| zayou亚洲福利一区| 日韩人妻无码视频18岁 | 女人十八毛片免费观| 奖励网站正能量www正能量| 奇米一区二区三区四区久久| 人妻蜜臀av一区二区| 欧美疯狂性受xxxxx另类| 国产日韩另类综合11页| 99精品欧美一区二区蜜桃美图| 老外黑人一级毛片| 亚洲猛男男同| 久久精品波多野结衣中文字幕| 国产精品二区在线| 成·人免费午夜无码不卡| 黄色一级国产精品| 6080精品人妻一区| 国产精品日产精品久久| 亚洲国产精品成人一区二区小说| 在线观看无码三级少妇| 亚洲欧美精品免费观看| 惠民福利久久精品国产亚洲7777 | 亚洲午夜精品第一区二区| 香蕉久久AB一区二区三区| 一区二区三区在线观看欧美| 亚洲精品欧美综合久久| 国产三级片大全网| 黄色大片一级毛片视频| 激情五月久久国色天香一区| 99精品一区二区无码吞精视频| 午夜福利男女xx00视频网站| 一区二区三区四区在线免费观看 | 国产精品一区二区精品片子| 一进一出把女子干的全身抽搐| 精品久久久久久无码人妻外国| 欧美日韩精品第一区二区| 亚洲色图在线视频| 青青草中国三级片| 91香蕉视频黄版下载| 在线观看国产一区二区三区 | 亚洲一级日本在线播放| 高清无码免费不卡视频| 惠民福利黄色成人网站免费无码av| 亚洲日本韩国成人在线视频| 国产免费人成视频不卡顿在线播放播 | 日本www成人网站在线观看| 成人高清毛片视频| 91久久精品日本一区| 18禁动漫一区二区三区| 国产欧美91在线| 日本乱中文字幕系列在线看| 怡红院免费的全部视频国产a| 大腿蜜精品在线一区| 国产激情一区二区三区成人麻豆| 欧美在线Vs免费一级片| 成人久久免费视频| 欧洲亚洲成人精品| 精品国产三级AV在线视色 | 国产白领勾搭外卖av| 无码AV中文字幕| 亚洲欧美日韩a∨在线观看| 国产成视频在线观看| 亚洲影库日韩久久久| 影音先锋国产在线| 久久久久久久久久久国产| 国产福利甜味弥漫精品tv一区| 久久九九精品视频| 91精品国产高清自| 精品免费在线欧美| 国产精品九九久久九九国产| 精品唯美系列最新在线视频| 欧美日韩精人妻品一区| 亚洲国产1区2区3区| 欧美在线国产一区| 国产免费牲交视频38禁| 欧美日亚洲黄色网站在线观看| 国产成人AV一区二区三区| 日本又色又爽又黄的网站免费| 下载强漫画人物软件| 日韩在线视频高清| 亚洲欧美日韩制服综合| 最新欧美一区二区不卡视频| 亚洲熟妇无码AV| 中文字幕一区二区高清精品久久久| 国产精品美女白丝自慰| 日本人69视频jizz免费看| 久久精品日产第一区高清版| 国产黄色在线网站| 亚洲亚洲国产精品| 一级曰本牲交视频| 一区二区三区午夜片| 久久黄色美女小视频网站| 超碰97人人模人人爽人喝| 91老师秘片黄在线观看| 欧美婷婷综合| 国产精品久久久久久五月天加勒比| 在线观看无码精品秘?日本| 艳妇荡乳欲伦2中文字幕| 日韩欧美一卡二区| 草莓视频免费在线看| 91免费入口在线观看| AV网站国产大全| 中文少妇无码影视| 久久AV无码三级美式禁忌| 欧美巨大激情久久久| 欧美日韩三级在线观看| 日本国产我97在线| 亚洲欧洲日产韩国夜夜高潮| 熟女一区二区天天操夜夜操| 亚洲永久免费无码打屁股| 亚洲精品视频一区二区| 国产成人久久99| 性高湖久久久久久久久| 国产av无码变态另类专区| 五月天伊人久久| av蓝导航精品导航| 羞羞漫画免费在线看| 亚洲色成人www在线观看| 亚洲中文字幕不卡无码| 亲胸揉胸膜下刺激视频试看| 插曲免费的视频大全影视| 欧美亚洲国产另类在线 | 久久黄色片三级片黄色网址| 一级?性色生活片毛片| 日韩中文无线码免费观看 | 99久国产久精品视频| 黄到让你下面湿的视频| 久久无码āV中文出轨人妻| 福利姬白浆AV导航| 掀开奶罩边吃边摸娇喘H片| 中文字幕有码欧美精品| 美女视频黄a视频全免费观看蜜臀| 国产精品va在线观看my| 亚洲 中文 欧美 日韩 在线人| 国产乱婬AV麻豆剧传媒牛牛影视| 日本久久高清一区二区三区| 俄罗斯aaaaa特级毛片| 免费无码a∨片在线观看| 尹人在线视频| 丝袜在线视频网站| 亚洲天堂在线观看免费更新| 国产精品剧情在线蜜臀| 国产成人AⅤ免费观看| 99精品一区二区无码吞精视频| 最近最中文字幕视频| 国产欧美va欧美va在线动漫| 亚洲āV无码专区国产乱码不卡 | 又黄又爽又硬网站| 久久久人妻无码一区二区三区| 97精品日韩永久性无码| 亚洲精品夜夜夜夜夜夜| 免费国产成人无码学生妹| 大屁股人妻女教师撅着屁股| 亚洲欧美另类久久| 日韩黄色高清视频| 越南女子杂交内射BBWBBW| 清纯唯美欧美综合第一页| a级高清毛片视频免费观看| 惠民福利黄色成人网站免费无码av| 欧美亚洲少妇日本| 亚洲中出中文字幕日本| 黄色a级视频免费播放| 日韩精品毛片无码一区| 日韩精品 欧美 制服丝袜| 女人被添荫蒂潮喷视频| 手机看片精品国产福利| 日韩美女A∨性爽一级毛片| 欧美12一13SEX性视频| 日韩在线欧美观看| 国产精品第页婷| 日韩在线视频中文一区二区视频综合| 制服丝袜美腿 AV影院| 国产在线观看91精品| 少妇太爽了在线观看视频| 日韩色欲人妻无码精品av| 码 码加勒比国产在线| 一级婬片一级视频| 久久久久免費精品視頻| 国产免费人成视频不卡顿在线播放播 | 惠民福利久久精品国产亚洲7777 | 色婷婷综合在线视频| 天美传媒国产精品果冻| 乱人伦AV麻豆网| 日本特黄特色大片免费在线观看| 日韩欧美高清在线播放| 我的漂亮女房东完整版在线韩剧| 婷婷六月天无码| 夜鲁夜鲁夜鲁高清免费看| 婷婷伊人久久大香线蕉AV| 亚洲中文无码日韩A∨精品亚洲免费观看网| 欧美韩国亚洲精品综合a| 大腿蜜精品在线一区| 欧美一级二级三级网站大全| 嫩草国产等最新內容| 人妖系列在线精品| 这里只有好看的a视频| 精品免费一区二区爱| 宝可梦沙奈朵口吐白色液体 | 三级毛片在线观看av| 亚洲 欧洲亚洲中文字幕无码精品| 97人妻人人揉人人躁人人爽动漫| 张警官撞玻璃9分10秒| 国产成人综合在线女婷五月99播放| 日本丰满熟妇厨房伦| 精品一区二区三区国产日韩 | 亞洲Aⅴ无码乱码在线观看| 精品精品男人的天堂在线| 天美传媒国产精品果冻| 18末成年禁止观看试看一分钟| 一级做a爰片久久毛片潮喷无码 | 国产女生自慰a级毛片| 蜜柚影院AV免费观看| 欧日一道本dvd在线无码| 国产∨a在线观看免费| 久久精品欧美| 欧美日韩中字在线| 外国av在线免费观看| 99精品欧美一区二区蜜桃美图| 黄片软件免费下| 九九免费喷水视频| 91短视频在线观看污污污| 最新无码国产在线视频2023| 一本久草综合| 久久黄色美女小视频网站| 被男子脱掉内裤的美女视频| 欧美大乳中文字幕在线| mmuu55首页 日本系列| 在线观看国产高清a| 国产亚洲综合秋霞影院国产| 亚洲经典国产av| 精品国产三级AV在线视色| 国产亚洲成AⅤ人片在线观看| 久久国产午夜精品免费一区二区| 黄色亚洲黄色日韩| 精子射入几天可以着床| 久久人人爽人人澡人人高潮AV | 大粗鸡巴久久久久| 1区3区4区产品乱入视频| 亚洲欧洲AVAV天堂系列| 91麻豆一区二区在线观看| 免费一级毛片在线播放放| 日韩精品中文字幕一区二区污污视频 | 国产成人精品毛片AV在线| 亚洲国产欧美日本韩中文字幕在线| 亚洲精品成人?v在线| 国产亚洲综合秋霞影院国产| 二区三区精品| 日韩台精品电影在线观看网站免费| 天堂成av午夜电影| 超碰97久久尤物| 日韩亚欧无码人妻免费| 啊灬啊别停灬用力啊黑人| 国产精品酒店在线观看| 怡红院免费的全部视频国产a| 欧美精品久久96人妻无码| 欧美亚洲日本色图片网| 欧美激情自拍偷拍另类| 久久成人精品免费国产片| 中文字幕无?v免费久久| 亚洲国产午夜精品一区二区| 欧美12一13SEX性视频| 特级a毛片免费观看| 亚洲男人久久综合天堂 | 日韩欧美精品亚洲一区二区| 视频一区亚洲专区| 老司机在线永久免费视频观看| 亚洲一区日韩动漫| 天美传媒国产精品果冻| 一级做a爱片高潮毛片| 免费av中文字幕| 国产精品欧美日韩视频播放一区| 亚洲三级毛片在那看| 日本天堂成人在线视频| 国产人妻高清国产拍精品| 无码观看在线一区| 亚洲va欧美a国产va综合| 久久国产午夜精品免费一区二区| 一级婬片一级视频| 亚洲熟妇真实自拍另类| 无码日韩中文专区视频| 男女做爰大粗舒服小说| 日韩精品老熟女视频网站免费观看 | 厨房里强摁做开腿呻吟动漫| 大香蕉国产综合在线视频| 大学生一级毛片全黄真无码| 手机在线日本视频| 好紧好湿好爽免费视频美女做| 国产一级婬片免费播放电影 | 亚洲综合精品二三区| 十八禁爽爽爽无遮挡在线观看网站| 欧美一级欧美一级在线观看| 亚洲av电影在线观看资源网| 亚洲国产av无码综合原创国产| 成人国产经典精品视频| 黄色AAA大片免费| 亚洲 自拍 露出 极品| 国产精品乱人伦丰满电影| 国产精品久久秘 A级| 884aa四虎影成人精品| 精品久久久久久无码福利片| 国产品国语在线不卡| 三级片欧美在线| 久久久精品3d动漫一区二区三区| 久久精品洲AV无码四区| 亞洲一區在線播放| 又黄又爽国产免费网站在线观看| 又大又粗又爽国产色欲AV| 野花日本韩国视频免费高清观看| 亞洲Aⅴ无码乱码在线观看| 色欲洲av无码精品国产午夜亚色| 欧美激情在线播放一区二区| 亚洲国产自久久婷婷| 婷婷综合六月| 柳州少妇无码一区| 俺也去精品视频在线观看| 秋霞久久女婷五月综合色啪| 亚洲欧美日产国产视频| 黄片视频免费国产| 亚洲欧洲久久久精品| 亚洲男人天堂无码2024| 久精品视在线中文字幕| 日本又色又爽又黄的网站免费| 国产成人精品影院网站不卡| 国产天堂在线一区二区三区| 日韩欧美亚洲另类激情一区| 欧美一级高清费一级a| 亚洲一区二区三区日本九九日韩| 手机看片午夜福利| 高清偷自拍亚洲精品三区| 在ktv上班被客人吃奶头| 美女视频黄又黄又免费| 欧美日老太太久久| 国产精品中文字幕一区二区三区视频 | 国产97精品一区二区在线观看| 色影音先锋色资源网站| 免费国产一区二区8X| 日韩和的一区二区| 欧美黑人精品一区二区在线| 国产高清色高清在线观看九在线视频 | 国产成人69天堂| 精品国产女主自在线久草| 久久黄色高清视频。| 久久艹这里只有精品| 影音先锋国产在线| 杨幂喷水高潮在线观看视频| 中文一区二区视频成人二区| 惠民福利国产AV无码专区亚洲AV毛片搜| 国产曰韩ai一区二区三区| 久久草福利视频国产| av中文字幕不卡无码| 91人妻午夜综合精品视频| 成人亚洲狠狠一二三四区| 日韩av手机在线观看不卡| 懂色午夜一区二区三区| 欧美日韩人成国产自产高清| 国产高清永久免费| 日韩精品成人蜜桃| 91香蕉依人综合久久| av蓝导航精品导航| 在线播放国产女同闺蜜 | 欧美日本成人免费| 少妇人妻中文字幕hd| 欧美黑人精品一区二区在线| 日韩高清一区二区第50页| 青草影院内射中出高潮 | k频道一区国产在线观看| 成人片在线观看亚洲欧美| 国产午夜福利精品理论片久久| 久久er热这里只有国产中文精品| 亚洲色拍国产另类| 91香蕉视频黄版下载| 大香伊蕉最新视频国产| 国产一级a毛一级a做免费高清视频| 国产成人av麻豆精品| 日本免码va在线看| 秋霞在线手机国产在线| 国产av剧情精品麻豆| 草莓视频APP下载官方| 国产内地刺激性精品毛片| 91天堂一区二区三区在线| 国产或人精品日本亚洲77美色| 国产精品视频色拍拍2021| 成在线人免费视频一区二区| 国产成人精品影院网站不卡| 成人免费a级毛片无码片在线播放| 婷婷五月深爱五月| 国产美女裸乳无遮挡网站| 全免费a级毛片免费| 尊龙凯时·(中国区)人生就是搏!| 蜜臀98精品國產免費觀看| 亚洲成人特级毛片| 久久国产这里只精品免费| 欧美精品在线观看不卡一区| 蜜臀aⅴ永久无码一区二区| 前后夹击征服骚女完美爆| 亚洲经典国产av| 永久免费毛片久久99| 国产99热在线露出| 国产成a人亚洲精v| 日韩高清一区二区第50页| 亞洲國產歐美在線觀看| 免费美女视频一区| 九九九国产在现视频| 国产精品久久成年人免费视频| 亚洲一日韩中文字暮AV| 欧美日本成人免费| 亚洲av成人片无码网站动画 | 高清国产在线日韩欧美| 日韩在线欧美观看| 99视频精品全部免费在线| 日本丰满护士bbw| 中国精品视频在线一区二区| 欧美精品VIDEOSEX极品| 中国精品视频在线一区二区| 蜜臀久久精品国产亚洲av| 动漫播放在线国产成人| 国产黄色在线观看.| 丁香亚洲综合五月天婷婷| 精品在线亚洲影院| 狠狠久久久精品| 亚洲殴美在线视频| 午夜最新电影 | 久久亚洲av成人网| 四川丰满少妇被弄到高潮| 欧美亚洲不卡av免费一二三区| 柳州少妇无码一区| 国产天堂网www在线资源av网| 久久午夜片电影鲁丝午夜精品| 人妻回春按摩肏到中出| 调教.求饶乖腿打开h| 中文又粗又大又硬毛| 午夜精品一区二区三区在线成人 | 午夜精品一区二区三区国产色欲| 亚洲丝袜在线观看| 特级毛片?级毛片在线播放| 午夜国产精品福利影院| 亚洲欧美日产国产视频| 久久九九精品视频| 韩国午夜理论a三级在线观看| 午夜精品福利波多野结衣| 一本久道久久综合网| 夜色www中国精品视频网站| 国产亚洲日韩网曝欧美11| 国产欧美AA一区二区三区视频| 变态骚女玩男人在线免费观看| 阿牛影院在线观看视频| k频道一区国产在线观看| 免费av中文字幕| 久久精品国产亚洲aⅤ麻豆图片 | 国产乱妇乱子视频在线观看免费 | 午夜视频成在线人成在线人| 亚洲最新av无码中文字幕一区| 久久午夜青青草原影院| 亚洲AAA一级无费看| av午夜福利精品一区| 人妻被中出不敢呻吟A片视频| 亚洲Av日韩Av在线播放| 日韓三級電影在線觀看| 国产无遮挡无码免费视频在线抪| 欧美日产国产成人免费点| 丝瓜草莓www在线观看| 免费嗨片直播网中文字幕| 浪潮国产精品久久久久?v浪潮| 双腿被绑成M型调教PⅠAY照片| 亚洲精品一区二区三区不| 久热这里只有国产中文精品| 色婷婷国产精品欧美毛片| 日本二区在线中文字幕好看到停不下来！| 91精品一二区久久无码电影| 午夜福利在线观看不卡| 国产精品免费播放器大全| 国产福利影视一二三区导航| 人妻蜜臀av一区二区| 亚洲精品国产导航一区二区| 在线观看精品成人综合视频| 国产天堂网www在线资源av网| 亚洲欧美精品免费观看| 日韩三级片免费观看| 久久久久久久国产精品视频| 亚洲欧州国产综合不卡在线免费视频 | 亚洲一级午夜福利| 性高湖久久久久久久久| 欧美日韩在线精品激情福利综合| 电影a区三区四区男人| 中文无码一区99xav| 亚洲欧美日韩精品久久久一区二区| 国产高潮女人在线播放| 精品久久久久久人妻黑人| 又大又黄又爽的成人免费视频| 日韩A∨无码综合久久五月| 尹人在线视频| 欧美中文字幕网站免费| 久久精品国产亚洲Vā香蕉| 四虎在线最新地址99| 蘑菇成品人app下载| 国产αV无码日韩αV无码网站 | 精品久久久久久人妻黑人| 有没有免费无码h网站的| 女生奖励自己隐私越狠越安全好 | 99视频在线看观免费| 中文字幕有码欧美精品| 日韩午夜在线高清成人| 三级日韩在线不卡| 日韩欧美偷拍人妻丝袜第一页| 最新欧美一区二区不卡视频| 四虎sihu新版影院亞洲精品| 在线播放国产视频99| 毛片女人片毛片免费二区| 国内一区二区三免费视频| 黄色视频在线观看视频网站| 精品国产?Ⅴ一区二区三区| 无码人妻侵犯一区侵犯| 国产在线观看91精品| 亚洲欧美日韩制服综合| 国产免费午夜福利在线播放92| 国产乱婬AV麻豆剧传媒牛牛影视| 亚洲色大全在线视频观看| 国产成人a在线看片色欲av| 欧美日韩三级在线观看| 欧美综合自拍亚洲综合网| 香蕉国产人午夜视频在线| 欧美成人做爰a片免费看美七烈 | 亚洲国产精品久久一线APP| 俺也去精品视频在线观看| 二级黄色录像片免费播放 | 国产欧美精品一区二区三区-老狼 自拍亚洲欧美另类动漫 | 激情在线视频| 三级在线观看mmm| 一二三四在线色网视频观看社区 | 男女十八禁啪啪无遮挡床震窝窝地| va在线看国产免| 日韩中文无线码免费观看| 国产精品玖玖玖玖影院| 久蕉在线视频免费精品| 欧美人妻精品一二三区| 99国产精品视频一区二区69堂| 亚洲一品二品三品精区网站| 亚洲色成人www在线观看| 国产成年男人裸j网站| 国产成人精品在线不卡 | 亚洲精品视频一区二区| 色情无码WWW视频无码区| 国产日韩另类综合11页| 最近最中文字幕视频| 欧美激情四射一区二区在线| 亚洲精品成人国产| 瑟瑟视频在线观看| 久久久最近免费字幕中文大全| 91伊人久久大香线蕉网站| 国产精品中文字幕一区二区三区视频 | 双性调教结婚每日淫训| 973午夜伦伦电影论片| 国产精品大白天新婚身材| 国产情侣实拍在线播放| 国:产一级黄色电影| 日产一区二区三区精品视频| 天美传媒国产精品果冻| 久久156精品视频| 成人欧美精品久久久久影院| 一区二区三区欧美午夜免费| 日本中文字幕www| 亞洲國產精品不卡在線電影| 又爽又黄又爽又刺激的视频| 少妇白浆一区二区| 人成午夜日本乱码伦视频亚洲 | 国产亚洲精品美女2020久久| 高清免费人成在线视频观看| 中文无码一区99xav| 美女自卫慰视频福利喷水| 欧美日韩中字在线| 成人免费毛片日韩毛片| 妓女网一区二区| a毛片免费全部播放吃| 欧美日韩电影码国产| 国产精品美女久久久浪潮?v| 亚洲午夜一区二区三区福利| 欧美亚洲日本色图片网| 久久久久久久久av毛片| 亚洲第一aⅴ天堂在线观看| 一级婬片一级视频| 日韩人妻内射一级| 日本高清免费中文字幕区dd | 亲胸揉胸膜下刺激视频试看| 亚洲欧美精品日韩片| 午夜精品人成在线观看| 国产亚洲A v手机在线观看| 最近免费MV在线观看| 欧美一级视频高清片| 最新欧洲日韩在线播放| 亚洲人妻久久无码| 精品久久久久免费免费自慰| 在线国产视频一区二区三区| 内裤堵嘴app高清| 一本久草综合| 五月丁香婷婷成人网| 欧美亚洲国产另类在线| 国产网友自拍视频| 国产αV无码日韩αV无码网站| 茄子短视频app在线观看| 三级在线看中文字幕完整版| 极品精品伊人国产| 久久免费看少妇高潮XXX| 午间影院又黄又粗又大| 中文字幕一区二区三区免费大片| 午夜网站黄色在线观看免费完整高清观看| 国产高清无码精品一区| 狠狠躁天天躁无码中文幕| 在线国产视频一区二区三区| 草莓视频app下载18| 2014AV天堂无码一区| 国产污污免费网站| 亚洲无码日韩精选中文字幕| 在厨房拨开内裤进入在线视频| 91精品国产高潮久久久久| 被男狂揉吃奶胸高潮视频在线观看 | 国产日潮亚洲精彩视频| 亚洲 欧洲 日韩 综合AV| 国产在线麻豆精品观看| 国产精品美女久久久久久大全| 九九爱WWW无码人成| 亚洲国内精品久久久久电影院| 日本中文字幕www| 日韩和的一区二区| 免费无码AV片在线观看sm| 91久久久久久国产免费| 日韩欧美国产不卡一区二区| 亚洲最新av无码中文字幕一区 | 双腿被绑成M型调教PⅠAY照片 | 亚洲国产一区二区三区在线播放放| 久久精品国产亚洲av夜色九虎| 中文字幕免费日韩中文中文| 欧洲精品高清无码一区二区三区| 国语自产拍在线观看99网| 狼友看视频的网站| 一级a爱片国产亚洲精品| 91精品国产福利久久| 国产又黄又爽的免费视频| 男女高潮吃奶添下面动态图| 精性国产在线视频| 加勒比在线看毛片| 国产在线视频一卡| 国产亚洲乱码无码www| 国产欧美亚洲精选视频| 中文字幕无码亚洲视频| 久久久久av綜合網成人| 加勒比在线看毛片| 日韩av中文无码人妻无码 | 99ER这里只有精品视频8| 久久夜色精品国产亚洲| 美女乳头阴道搞鸡巴视频| 日本欧美一区二区| 1024在线看片你懂的| 国产精品www在线观看| 欧美在线免费亚洲| 亚洲Av秘无码一区二区| 办公室a片在线观看 | 超碰在线99免费在线不卡| 99re8免费视频精品全部| 国产精品欧洲激情无码AV在线 | 国产一级二级三级免费| 欧美嘿咻嘿咻视频免费| 日韩欧美一卡二区| 激情影院免费视频试看| 18禁美女裸体无遮挡的网站| 国产精品无码动漫| 女人十八毛片免费观| 少妇无码AV无码专区在线| 日韩人妻内射一级| 欧码无码久久久| 欧美中文字幕在线视频| 中文又粗又大又硬毛| 国产福利影视一二三区导航| 精品天天做天天爽夜夜爽人妻爽| 狠狠色狠狠色綜合久久第一次 | 韩国三级电影久久久| AV网站国产大全| 日韩美女自慰又黄又粗| 高清无码免费不卡视频| 亚洲中文字幕不卡无码| 亚洲国产自久久婷婷| 成年午夜免费aⅴ在线观看 | 欧洲亚洲成人精品| 成人国产精品福利视频| 私人影院午夜在线观看| 国产AV三级精品成人网站| 精品久久久久久无码福利片| 国产亚洲欧美ai在线看片| 国产超级无码一极毛片 | 国产精品电影不卡无码| 国产福利 在线播放| 中文字幕在线永久资源| 中文字幕永久有效丝袜| 亚洲欧美日韩另类色图| 国产乱子伦午夜精品视频| 人妻少妇精品久久人妻| 亚洲经典国产av| 欧美一区二区免费播放| 久久国产中文字亚洲幕| 国产一级国产一级在线观看| 亚洲高清无码操逼视频| 亚洲午夜电影欧美整片sss| 国产真实乱子伦| 中文字幕一区日韩无码| 青春草五月天婷婷欧美日韩| av在线免费观看高清| 99爱免费视频在线观看禁 | 四虎sihu新版影院亞洲精品| 日韩国产欧美一区免费观看| 中国幻女free性zozo交体内谢| 精品久久无码中文字幕蜜桃| 欧洲亚洲激情TV中文字幕| 伊人丁香五月在线视频| 三级在线免费a免费看| 欧美一区二区在线播放免费播放| 亚洲国产香蕉视频欧美明星换脸| 男生女生一起怼怼的app下载大全| 最近免费MV在线观看| (愛妃)久久AV无码精品人妻出轨| 国产污污污软件免费下载观看 | 少妇一区二区三区精品| 欧美日韩三级在线观看| 日韩一区二区三区四区在线播放 | 餐桌下狂c亲女高辣h文| 亚洲av成人精品日韩在线播放| 三级在线观看mmm| 成人在线免费观看黄片| 国产精品亚洲日韩高清资源| 1区3区4区产品乱入视频| 亚洲有无码av在线播放| 偷拍女厕一区二区| 91探花偷偷拔套在线播放 | 日本精品在线免费观看| xxxx欧美丰满大屁股| 奖励网站正能量www正能量| 女性高爱潮免费有声视频网站| 欧美日韩aⅴ人妻| 狠狠干2017欧美最新| ddd54手机免费看| 神马午夜久久久久久| 亚洲欧美精品免费观看| 宋雨琦ai人工智能造梦| 毛片三级片在线免费观看| 九九热精彩视频| 小说图片视频一区| 有没有试过一前一后两个人| 青青青精品大杳蕉| 青青草中国三级片| 亚洲日韩欧美aⅤ精品| 激情影院免费视频试看| 午夜久久无码成人免费AV| 成人亚洲狠狠一二三四区| 日本国产在线播放一区二区不卡| 国产午夜福利精品一区二区久久| 日本天堂影音资源在线观看 | 精品日韩久久一区| 亚洲AV无码AV在线播放野外| H片在线播放免费观看| 男女无遮挡动态图| 免费啪视频在线观看视频日本| 日产无人区一线二线三线公司| 国产亚洲精品系列| 日本成a人片在线观看网站| 男人J桶进男人屁股过程| 亚洲欧美日韩综合第一| 久久五月一区二区精品| 无码国产福利av私拍导航| 男人把j伸进女人的p免费| 91精品一二区久久无码电影| 精品国产v无码大片在| 麻豆精品国产一级| 99久久99久久久精品| 狼人一区二区精品久久| 美女视频黄又黄又免费| 91在线无码精品秘九色APP| 91香蕉视频黄版下载| 久久久久久中文字幕人妻69 | 欧美日本在线不卡二区| 在线三级网址| 亚洲中文字幕丁香婷婷| 國產日韓視頻在線| av大片在线观看| 色偷偷综合亚洲av78| 欧美激情一区精品| 欧美日韩一区二区三区一| 午夜精品一区二区三区国产色欲 | 国产精品久久久久久五月天加勒比| 国产在线麻豆精品观看| 成人在线免费观看黄片| 91精品导航在线观看| 精品国产成a人片在线观看| 亚洲国产激情一区在线| 医院人妻隔着帘子被中出| 午夜免费一级av福利毛片| 在线播放亚洲黄片| 人人色人人干人操| 久久毛片免费一区二区三区电影| 久久免费视频观看30秒| 99久久99久久久精品| 超级碰97直线国产免费公开| 日韓歐美一區二區三區不卡| 亚洲天堂在线观看免费更新| 少妇挑战黑人4p惨叫| 成人无码av一区二区三区| 国产区成人在线观看| 香蕉国产人午夜视频在线| va中的国少妇偷人HD| 久久伊人毛片视频| 国产精品影音先锋69| 亚洲av成人片无码网站动画 | 亚洲午夜无码电影| 亚洲手机在线成人| old老太videos老妇中国| 亚洲性爱视频网站一级看片| 久久久综合精品一区二区三区无码| 国产一久久久久久久久| 欧美91成人亚洲播放网站| 妓女精品一区二区| 天堂成人在线视频| 国产综合v亚洲欧美大片| 亚洲s码欧洲m码一二三区| 久久精品国产99国产精品严洲| 亚洲视频在线观看污污的黄| 国产黄色三级三级三级| 亚洲 自拍 色综欧美合图区| 香蕉视频久久免费直播| 国产又粗又猛又大爽又黄的软件| 国产又粗又大又硬又爽免费视频| 成年人在线观看网站| 欧洲成熟女人色惰片| 五月丁香婷婷成人网| 男人天堂日韩精品| 国产免费福利片在线视频| 91天堂一区二区三区在线| 国产91作品一区在线观看| 亚洲精品种子网站在线观看 | 99视频日韩三级电影| 国产欧美一区二区日本加勒比 | 成人高清毛片视频| 韩国激情三级做爰观看极限| 青青青精品大杳蕉| 国产黄色在线网站| 欧美a级片在线观免费观看| 亚洲美女在线免费视频| 日韩欧美国产不卡一区二区| 亚洲国产小u女在线| 最新全集网电影免费在线看| 无码A∨高潮抽搐流白浆8MAV | 九九爱WWW无码人成| 日韩免费AV无线在码| 欧美色吧久久综合| 性色aV一区二区三区红粉影视| 色99热久久99热国产精品| 国产精品美女在线免费| 国产精品视播放一区二区三区| 亚洲日韩欧美在线成人| 成人综合在线视频免费观看完整版| 91k国产在线观看尤物| 国产成人综合亚洲国产vr| 在线观看xxxx国产| 欧洲熟妇精品视频在线成视频| 日本AⅤ精品中文字幕在线| 亚洲国产激情一区在线| 激情婷婷丁香五月| 女人的天堂毛片AV在线| 亚洲免费视频免费观看| 国产不卡免费在线视频| 久久精品亚瑟全部免费观看| 一区二区精品在线| 午夜网站永久在线观看| 国产在线一区二区三区乱码| 16处破外女出血视频在线观看| 影音先锋国产在线| 欧美sese尤物一区二区| 中文字幕不卡乱偷在线 | 国产精品玖玖玖玖影院| 亚洲欧美日韩制服综合| 成人看片黄在线观看| 欧美狠狠入鲁的视频| 免费萌白酱国产一区二区三区| av日韩在线观看一区二区三区| 久久夜靖品2区含羞草| 精品人妻中文无码久热丝袜| 国产精品男人在线播放| 欧美亚洲国产另类在线| 中文字幕有码不卡| 日本3p视频在线看高清| 国产视频日日操| 无码中文字幕aⅴ免费费放| va中的国少妇偷人HD| 麻豆精品在线免费观看| 成人看片黄a免费看视频 | 久久99热免费精品久久| 福利午夜伦理影院| 国产欧美AA一区二区三区视频| 午夜国产一级大片免费观看| 国产精品大白天新婚身材| 国产又爽又黄免费网站| 日本AⅤ精品中文字幕在线| 亚洲欧洲AVAV天堂系列| 日韩产品和欧美产品的区别| 男生和女生在一起打牌的很痛的app| 国产成人av大片大片在线播放| 94人妻喷水视频在线| 歐美性一交激情視頻在線| 成人国产精品福利视频| 在线精品三级视频在线网| 亚洲国产香蕉视频欧美明星换脸| 欧美午夜久久精品另类| 中文成人无码国产亚洲| 亚洲日本精品va中文字幕| 男女无遮挡动态图| 网红久久精品一区二区| 欧美日本在线不卡二区| 中文字幕久久精品有码综合网| 欧美亚洲少妇高清| 亚洲国产精品香蕉视频| 国产一级黄aa爽| 午夜福利男女xx00视频网站| 日本香蕉视频在线观看| 欧洲aⅴ无码片一区二区三区| 精品三级66在线播放| 丰满少妇猛烈进入无码| 国产精品99欧美在线一区二区| 韩国美女一级毛片| 国产男女嘿咻视频在线| 日韩美女自慰又黄又粗| 波多吉野一区二区三区av| 久久电影午夜鲁丝片无码| 亚洲AⅤ成人综合网伊人APP| 欧美性爱福利视频| 婷婷伊人久久大香线蕉AV | jizz一区二区在线观看| 日本在线一区二区三区免费| 黄人成a动漫片免费网站| 91桃色污污污污污污污污污| 欧美精品在线观看不卡一区| 张警官撞玻璃9分10秒| 午夜老司机福利日韩视频在线高清| 久久无码精品国产亚洲AV未满十八 | 激情五月久久国色天香一区| 免费日韩视频| 亚洲乱码国产乱码精品精乡村| 久久图片视频小说| 国产精品小姐久久久久久| 邻居少妇人妻互换| 国产制服在线视频| 熟妇人妻av中文字幕老熟妇 | 98bb国产精品视频| 国产黄色在线观看.| 亚洲欧洲AVAV天堂系列| 日本少妇一级婬片HD69网站| 日本一区二区三区三州| 韩国三级中文字幕HD久久精品| 成人性做爰aaa片免费看不忠| 特级毛片?级毛片在线播放 | 亚洲精品色无码一二三区| 激情精品视频在线观看| 皮衣战神聂小雨1080p黑椒不打烊| 91情侣在线精品国产| 免费99精品国产一级A大人片 | 亚洲国产在线精品国自产拍影院| 亚洲午夜一区二区三区福利| 97久久一精品人妻人人玩| 又黄无遮挡无码的免费视频| 免费无码在线aⅴ| 高潮抽搐流白浆视频在线观看| 国产盗摄精品一区二区酒店等 | 911永久在线网站| 精品久久久久久久久久香蕉| 小视频播放亚洲欧美| (愛妃精選)免费无码毛片一区二区| 亚洲午夜精品第一区二区 | 亚洲Av日韩Av在线播放| 色夜av网午夜福利片| 国产美女露底激情视频| 伊人影院在线播放| 国产精品黄在线观看免费网站| 亚洲精品私拍国产福利88 | 国语自产拍在线观看99网| 国产欧美va欧美va在观看| 国产精品自偷自拍| 神马免费视频在线观看| 99热国产这里只有精品99| 不卡av中文在线观看| 女人被男人桶| 色欲?ⅴ精品一区二区三区四区| 日本高清中文无卡| 麻豆精品国产一级| 国产精品中文字幕一区二区三区视频| 精品二区三区在线观看| 国产成人69天堂| 亚洲av无码网站yw尤物| 午夜老司机福利日韩视频在线高清| 国产精品熟女第7页| 国产精品色片免费| 日本美国一级大片| 国产欧美AA一区二区三区视频| 超碰97久久尤物| 国产1区2区精品自拍| 自拍欧美在线观看三级| 日本在线一级| 丰满爆乳无码专区线一区二区三区| 黄色大片一级毛片视频| 亚洲尤物永久无码AV毛片| 国产亚洲欧美ai在线看片| 色噜噜国产精品视频一区二区互动交流 | 欧洲另类综合| 国产精品一区二区精品片子| 加勒比在线视频频図鑑| 国产真实乱子伦| 青草久久在线免费观看视频| 秋霞午夜国产一区二区三区| 日本强伦姧人妻完视频正版| 在线观看麻豆| 久久亚洲欧美精品一| 玖玖玖在线视频免费观看| 在线精品三级视频在线网| 国内精品久久久久久婷婷| 欧美国产第一区| 久久午夜福利久久网| 韩国美女一级毛片| 曰本大码熟中文字幕| 午夜福利男女xx00视频网站| 亚洲成人激情在线观看| a狠狠久久蜜臀婷色中文网 | 欧美人成一本免费观看视频| 欧美一级aa大片免费看视频| 国产福利 在线播放| 青青草无码精品伊人久久网站| 国产高清乱码无卡女大生| 女银行员暴行办公室| 亚洲欧美日韩a∨在线观看| 中文字幕在线不卡观看视频| 日本免费一区二区三区看片| 日本午夜在线视频| 亚洲丝袜在线观看| 超碰97人人天天夜夜| 十大禁止安装app软件入口免费| 欧美日韩主播国产视频| 午夜性爽视频男人的天堂在线| 亚洲午夜久久久久无码| 91短视频在线观看污污污| 久久国产精品一国产精| 日韩精品 欧美 制服丝袜| 97久久久人妻一区精品| 日韩殴无码中文字幕| 亚洲国产午夜精品一区二区| 宋雨琦ai人工智能造梦 | 丰满爆乳无码专区线一区二区三区 | 无码人妻热线精品视频| 超碰97人人模人人爽人喝| 国产50部艳色禁片无码国产麻豆精品一区二区三区 | 成年午夜免费aⅴ在线观看| 91精品国产91久久久久久无码天美 | 免费无码在线aⅴ| 精品人妻少妇aⅴ免费狠狠| 午夜福利精品无码福利| 国产精品欧美久久久无广告| 2020国产成人精品视频网站| 亚洲日本日本精品18不卡| 手机在线看片你懂得| 久久国产这里只精品免费| 最近2019中文免费字幕在线观看| dddd亚洲日韩欧美精油| 亚洲亚洲国产精品| 日本久久一区二区免费| 香港av无码播放一级毛片免费| 国产高清在线观看AV片| good电影在线观看三级中文| www.91大地资源二中文在线观看官网成全更新视频 | 国产成人a在线看片色欲av| 无码熟妇一区二区| 人妻一区在线播放| 亚洲青青草原男人的天堂| 在厨房拨开内裤进入在线视频| 大乳爆乳无码一区二区三区| 大香伊蕉最新视频国产| 草久在线视频在线观| dy888午夜国产精品亚洲| 日韩人妻无码视频18岁| 中文人妻久久| 九一视频免费版污| 亚洲天堂在线观看免费更新| 不卡av在线播放| 夜鲁夜鲁夜鲁高清免费看| 韩日中文无码在线视屏| 日韩在线欧美在线一区二区三区| 午间影院又黄又粗又大| 日韩色欲人妻无码精品av| 久久午夜片电影鲁丝午夜精品 | 99国内精品久久久久久| 久久久精品3d动漫一区二区三区 | 亚洲欧美日韩制服综合| 91成人午夜福利在线观看国产| 又黄又爽国产免费网站在线观看 | 亚洲成人一线二三线在线观看| 亚洲欧州国产综合不卡在线免费视频 | 亚洲AV秘 无码一区二区久| 亚洲AV日韩在线一区二区三区 | 国产18成人三级在线观看| 亚洲欧美一区电影| 日韓歐美一區二區三區不卡| 欧洲另类综合| 18勿看免费大片1000拍拍| 成年人视频久久免费| 免费AV一区二区三区3ATV| 欧美疯狂性受xxxxx另类| 惠民福利久久精品国产亚洲7777 | 国产精品二区在线| 一本色道久久88加勒比—综| 亚i洲成色在线综合网站| 精品亚洲精品在线观看 | 亚洲狼人制服中文字幕| 另类小说图片区日本久久大视频| 欧洲成熟女人色惰片| 五月婷婷丁香综合| 无码国产福利av私拍导航| 天堂国产在线视频| 久久久国产精品免费无码| 国产精品网站 夜色| 91精品无码专区免费| 一区二区三区国产V欧美| 邻居少妇人妻互换| 国产av自拍播放| 久久精品欧美| 大屁股人妻女教师撅着屁股| 精品人妻挤奶一二三四区| 草莓视频污污污版下载| 亚洲美女在线免费视频| 色噜噜国产精品视频一区二区互动交流 | 一级婬片一级视频| av午夜福利精品一区| 青春草五月天婷婷欧美日韩| 狠狠cao免费视频| 清纯唯美欧美综合第一页| 成人A免费播放网站| 辣妹子影院电视剧免费播放视频大全在线观看| 天天噜夜夜噜狠狠噜| 永久免费观看的片毛视频| 欧美三级日韩国产在线观看| 皮衣战神聂小雨1080p黑椒不打烊| 久久精品視頻只有這里| 亚洲国产中文字幕在线视频| 国产又粗又大又硬又爽免费视频| 一色屋精品无码免费视频| 欧美牲交?欧美牲交| 字幕大全网址撩人精品磁力视频二区| 成人欧美精品久久久久影院 | 国产精品福利福利一区在线观看| 久久99视频丝袜爱| 国产偷窥熟女精品| 偷自拍亚洲综合在线| 婷婷成人久久精品国产| 1024手机在线国产你懂的| 午夜福利男女xx00视频网站| 成人a一级毛片免费看视频| 国产污污污软件免费下载观看| 亚洲欧美日韩综合第一| 1区3区4区产品乱入视频| 欧美牲交?欧美牲交| dddd亚洲日韩欧美精油| 掀开奶罩边吃边摸娇喘H片| 国产91久久精品一区二区九色| 国产激情一区二区三区成人麻豆 | 99久久国产综合精品尤物婷婷| 亚洲麻豆精品久久久| 夜色www中国精品视频网站| 日韩三级黄片免费观看| 99RE6国产精品99RE在线| 国产精品乱人伦丰满电影| 高潮喷水女仆流白浆| 久久无码私人网站| xxxx黄色网站在线观看| 美女任你摸免费视频| 99视频精品全部免费在线| 午夜视频成在线人成在线人| 精品自拍自产一区二区三区免费| 日韩在线视频高清| 大屁股人妻女教师撅着屁股| 69式真人无码视频免费| 国产香蕉精品视频| 女人19水真多免费毛片| 搡老女人老妇老熟女50ⅹxxx| 精品黄色国产在线观看| 国产不卡免费在线视频| 欧美综合自拍亚洲久久| 手机看片精品国产福利| 亚洲九九夜无码在线观看| 美腿丝袜诱惑一区2区| 亚i洲成色在线综合网站| 中文字幕人妻毛片av| 久久黄色片三级片黄色网址| 亚洲āV无码专区国产乱码不卡 | 惠民福利久久精品国产亚洲7777| 国产曰韩ai一区二区三区 | 中文字幕无码138页| 久久精品99国产国产精人s| 制服丝袜物喷水亚洲综合精品| 在线播放国产视频99| 欧美日韩aⅴ人妻| 国产真实迷奷系列在线看| 国产在线拍偷自揄拍无码成人| 一区二区三区无码精久久| 越南女子杂交内射BBWBBW| 少妇无码AV无码专区在线| 国产内地刺激性精品毛片| 欧美阿v高清资源在线| 二区三区精品| 亚洲欧美精品日韩片| 老外黑人一级毛片| 午夜男女后插入在线免费| 国产小视频一区二区三区中文字幕在线播放 | 国产成人综合影视| 日本天堂影音资源在线观看| 久久偷拍视频SPA| 日韩人妻无码视频18岁| 国产一级内射麻豆91| 少妇的丰满3中文字幕电影| 亚洲制服精品一区二区三区| 图片区电影区激情区小说区| 亚洲人成人一区在线观看| 国产成 人 亚洲 综合| 真实国产乱子伦对白在线播放| 一级黄色毛片在观看| 久久精品視頻只有這里| 激战雪姨后厨2最新版本更新内容 美女视频黄又黄又免费 | 亚洲三级无码经典三级| 韩国国产一级片在线观看| 国产Av激情久久无码天堂| 国产av一区二区三区香焦| 2020日韩中文字幕| 手机看片精品国产福利| 亚洲欧美日产国产视频| 欧美jizz18性欧美色天堂综合在线 | 91欧美激情一区二区三区成人日韩99久久综合狠狠综合久久 | 97久久国语露脸精品对白| 乱人伦AV麻豆网| 国产亚洲综合秋霞影院国产| 99久久精品无码一区二区麻豆| 人妖系列在线精品| 欧美一级在线高清免费观看| 欧美精品青青久久久久久久久久久| 国产成人在线免费网站| 男生女生一起怼怼的app下载大全| 久久精品国产亚洲A∨未满十八| 欲乱人妻少妇邻居+毛片| 亚洲?V伊人久久综合密臀性色| 91精品无码4k岛国| 国产精品1区2区3区4级网站| 亚洲性爱视频网站一级看片| 韩国三级中文字幕HD久久精品| 欧美日韩中文字幕国产一区| 亚洲日本韩国成人在线视频| 无码视频一区二区三区六区| 日产一区二区三区精品视频| 亚洲丰满少妇色网视频网| 动漫av观看网站不卡无码| 极品人妻videos人妻| 一级黄色欧美性爱| 中文字幕久久久久一区| 午夜激情无码| 日本黄线在线视频免费看 | 精品自拍自产一区二区三区免费| 天天看天天噜噜噜在线视频| 丁香亚洲综合五月天婷婷| 下载强漫画人物软件| 精品手机在线| 国产高清无码精品一区| 色影音先锋色资源网站| 千金去SM体验馆被调教| 日本成a人片在线观看网站 | 国产精品有码无码脛∨在线 | 日韩欧美国产三级一区| 欧美中文字幕在线视频| 樱桃视频草莓视频幸福宝| 午夜国产一级大片免费观看| 国产色精品vr一区区三区| 欧美粗大猛烈18p图| 人妻精品久久一区二区| 小编在这里为大家带来看日韩黄色毛片 | 美女我无遮挡被艹网站自慰| 國產日韓視頻在線| 亲近相奷对白中文字幕| 日韩激情偷拍第3页| 日韓福利一區| 91影视在线观看| 欧美男人与动牲交zooz| 国产欧美va欧美va在线动漫| 女人被男人桶| 94人妻喷水视频在线| 一区二区放荡亚洲人妇| 黄色欧美三级在线看| 国产原创剧情情欲放纵| 国产精品成人嫩草影院| 91亚洲黄色在线看| 日本久久久久精品免费| 无码中文字幕aⅴ免费费放| 在线国产网站中文字幕av| 奇米777在线影视四色首页| 欧美亚洲不卡av免费一二三区| 国产一区二区三区精品高清| 精品一区二区三区播放| 国产黄色三级三级三级| 欧洲aⅴ无码片一区二区三区| 日本高清在线视频无码| 黄色a级视频免费播放| va中的国少妇偷人HD| 又大又粗又爽国产色欲AV| 亚洲中文字幕乱码影院在线| 99天天操天天做天天| 日韩一二区无码精品一区| 色噜噜狠狠狠狠狠色综合| 国产精品www在线观看| 久久99国产精品二区不卡| 香蕉久久AB一区二区三区| 欧美成人aa久久狼窝五月| 九一视频免费版污| 色午夜天香婷婷丁香| 亚洲第一天堂日韩| 久久综合成人精品亚洲另类欧美| 在线播放日韩国产欧美| 久久久久久人妻| 最新欧美一区二区不卡视频| 国产真实乱子伦| 国产精品女同久久久久电影院 | 一二三四高清在线观看视频中文| 国产在线视频一卡| (愛妃)久久AV无码精品人妻出轨| 激情影院免费视频试看| 四虎永久在线免费视频一二区| 美女动态三级在线| 亚洲AV综合色区无码区| 成年无码AV片在线蜜芽| 亚洲天堂在线观看完整版| 隔壁放荡人妻bd高清| 午夜福利精品无码福利| 无码人妻不卡久久一区二区| 丁香五月久久激情综合中文字幕| 国产精品男人在线播放| 在线观看无码高清aaa| 国产一级无码| 国产日韩综合一区二区性色?Ⅴ | 在线观看精品成人综合视频| 成人午夜福利小视频| 日韩视频在线观看免费6080 | 亚洲精品无码av国模| 亚洲一区二区麻豆AV| 99爱免费视频在线观看禁| 欧美狠狠入鲁的视频| 国产一区二区三区不卡在线| 日韩精品老熟女视频网站免费观看| 草莓视频APP下载官方| 国产精品美乳| 黄到让你下面湿的视频| 99久久免费只有精品国产在 | 美女黄又色高清视频免费| 亚洲一区日本在线| 欧美激情诱惑在线观看| 国产三级片大全网| 国产精品亚洲综合每日| 国产视频亚洲精品| 欧美一区二区在线播放免费播放| 前后夹击征服骚女完美爆| 区二区三区在线观看视频| 青青草无码精品伊人久久网站| 国产一级二级三级免费| 欧洲成熟女人色惰片| 91果冻精品国产自产自产在 | 成人网免费视频色呦呦| 91精品国产综合久久久亚洲日韩| 无遮挡美女18禁免费啪啪| 2014AV天堂无码一区| 国产麻豆精品成人毛片| 日本羞羞视频在线观看| 虎白女粉嫩粉嫩的18在线观看| 五月天丁香色| 国产福利 在线播放| 中美日韩三级毛片免费观看| 中文字幕人妻久久精品一区二区| 国产目拍亚洲精品二区婷婷| k频道一区国产在线观看| 双性调教结婚每日淫训| 国产黄色在线网站| 一区二区放荡亚洲人妇| 最新久久高清精品| 欧美成人国产精|