Back-off Sub
Back-off Sub
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Spiral drill collar | Spiral Drill Collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. spiral drill colla... |
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Back-off Sub | Back-off Sub Type OD(mm) ID(mm) Connection(API) ThreadforFishing(API) OAL(mm) ZDK105-1-00 105 20 NC31LH 27... |
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Taper Tap | Thetapertapisaspecialfishingtoolmakingthreadintubedroppedobjectsuchasdrillpipeandoiltube.Thetapsareturnedfromhightrengthalloysteelforgingmaterialsa... |
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