A core regulating padring is padded on the lower ring of the thrust bearing, which can make the hook swing in any directions corresponding to the connecting cylinder.
在推力轴承下圈垫上调心垫圈，可使吊钩相对连接筒在任意方向上摆动。
2
It consists of a base and two ring type devices which can be worn onto the finger pad which is the most sensitive part of the finger.
它由一个基座和两个环状设备组成，可以套在指垫上，而指垫是手指上最敏感的部位。
3
At installation, insufficient compression of the sealing pad behind the carbon ring seal of the expander results in oil entrance to expander body and to the corresponding pipeline.