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Mudanjiang Dongxu Machinery Co., Ltd.
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Drill Collar

Mudanjiang Dongxu Machinery Co., Ltd.
Mudanjiang Dongxu Machinery Co., Ltd.
City: Mudanjiang
Province/State: Heilongjiang
Tel: +86-04536187299

Drill Collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. TIANHE brand drill collars are manufactured strictly from API Spec7-1 and SY5411 standard.


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