Specification for pipe thread taps 管螺纹丝锥规范
The box taps is a special external tool cutting thread and fishing externally from dropped object such as tubing, drill pipe.
母锥是一种专门从油管、钻杆等管状落物外壁进行造扣打捞的工具。
youdao
应用推荐
模块上移
模块下移
不移动