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hoisting plug

A pin-thread heavy-bodied coupling provided with a swivel-mounted eye in the end opposite the pin-thread end. When attached to the hook on the drill-hoist line, the pinthread end can be screwed into the rods to hoist and otherwise handle drill-string equipment when making borehole round trips.

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创建者

  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 分数
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