1、双头螺栓
... carbon 碳,积碳 screw stud 双头螺栓,螺柱 explosive mixture 可爆燃混淆气 ...
2、无头螺桩
...螺钉扳手 screw spanner无头螺桩 screw stud洗涤槽 scullery ...
3、螺柱
... Screw plate 搓丝板 Screw stud 双头螺栓,螺柱 Screw tap 丝锥 ...
tension screw stud夹线螺钉
stud screw柱螺栓螺钉;螺柱螺钉
balance spring stud screw游丝外栓螺钉
hairspring stud screw游丝外桩螺钉
balance ring stud screw游丝外栓螺钉
balance e spring stud screw游丝外栓螺钉