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TianHe oil Group co., Ltd
TianHe oil Group co., Ltd
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    Drill Collar

    Drill Collar

    Price:
    star.wang@hotmail.com
    Quantity Order:
    Pack. & Delivery:
    dean@tianheoil.com

    Specification :

    Drill Collar
    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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