1、环头螺钉
... ring scotoma ==> 环形暗点,环状暗点 ring screw ==> 环头螺钉 ring screw ga(u)ge ==> 螺纹环规 ...
2、松紧螺旋扣
... 双钩吊 rinomshorn 松紧螺旋扣Ring screw 我不知道集装箱吊具卸扣 shair coolingkle ...
antifriction ring holder screw减摩环托螺钉
balance ring stud screw游丝外栓螺钉
Lock ring with screw螺钉锁紧挡圈
mold ring with screw thread螺纹型环
ring screw gage螺纹环规
ring screw gauge螺纹环规
ring flange mounting screw环形凸缘安装螺丝
Live Ring Screw生猛响螺