久这里只精品99re66,女人18毛片A级毛片免费视频,亚洲高清无码视频网站在线,夜色爽爽影院18禁妓女影院

Anti-leakage self-sealing gate valve adopts mounted structure, which reduces the connection bolts of the body itself under the condition of high pressure and large diameter, enhances the reliability of the valve and overcomes the influence of system weight on the normal work of the valve. Size: 2"～48"
Rating: 600LB～2500LB
Materials: Carbon Steel, Stainless Steel,
Chrome-Moly Alloy Steel, etc
Design STD: API 600,ASME B16.34
End Connection: RF, RTJ, BW
Operation: Handwheel, Gear, Motor
Low Emission Testing
Flexible Wedege