母锥

  • 网络die collar;box tap;Hen Tap
母锥母锥
  1. 研究和改进了腐蚀油管打捞工具套铣母锥和卡瓦捞筒,提高了对腐蚀油管的打捞成功率。

    Researched and improved corroded tubing fishing tools : Milling die and Slip overshot , improved corroded tubing salvage success rate .

  2. 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。

    The box taps is a special external tool cutting thread and fishing externally from dropped object such as tubing , drill pipe .