1、链销
... chain link链节 chain pin链销 chain pipe wrench链条管扳手 ...
2、锁环销
...塌陷的预防：subsidence prevention锁环销：chain pin缩合法：condensation ...
3、链条销钉
...chain nose pliers 链用钳chain pin 链条销钉chain pipe cutter 链条管子割刀 ...
4、测钎
... chain out the hole 起钻时不用转盘而用旋绳器卸扣 chain pin 测钎 chain pipe tongs 链式管钳 ...