大香蕉性生活手机在线看,美女性奴母狗磨粉嫩骚逼,鸡巴插入阴道视频,精品人妻久久99一区二区三区,免费av无码不卡在线观看,少妇操bbbb操bbb,两个鸡巴操一个b勉费观看,美女被大鸡巴强爆B出水,久久精品免看国产成

1. This type of fluid coupling is with further enlarged delay chamber and additional side chamber
in the coupling shell. The design enables starting torque to be further reduced and starting time
to be further prolonged. It was designed especially for belt conveyors to reduce starting torque,
prolong starting time and have longer life of the belt.

2. The screw inside shaft in figure is optional.