... 油灰泵 putty pump 管绞刀 pipe reamer 转向轴心(船运动) pivoting point ...
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... pipe prover 标准体积管，管式校准器 pipe reamer 管子铰刀 pipe reducer 异径接管 ...
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taper pipe reamer 锥管铰刀
PIPE DEBURRING REAMER 管子修边器
pipe cutter reamer 管子割刀片
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Drill pipe is attached to the far side of the reamer so that it can be pulled back from the near side, once the pre-reaming operation is complete.
扩孔器远侧与钻杆相连，当预扩孔作业完成后，可以将扩孔器从近侧拖回到远侧。
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