: Beijing Jincheng Mining Technology Co., Ltd.

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Drill Stem AISI4151H Core Drilling Tools Cross Over Subs For Drill Collar

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Beijing Jincheng Mining Technology Co., Ltd.

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Drill Stem AISI4151H Core Drilling Tools Cross Over Subs For Drill Collar

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Drill Stem AISI4151H Core Drilling Tools Cross Over Subs For Drill Collar

Drill Stem AISI4151H Core Drilling Tools Cross Over Subs For Drill Collar Description: 1. It is divided into drill string crossover and tubing Crossover. 2. Drill string Cross-over is divided into ...

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circle wrench

hoisting plug

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