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Changzhou Oilfield Petroleum Equipment Co., Ltd. Quality Control

thanks for your high quality oil tubing and casing, and your best survice. feeling good. will be more business with your company in future!

—— Jake

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      We established a comprehensive quality management system and through the API 5CT and API Q1 certification, in the production process in strict accordance with the quality manual and program document control requirements of product quality:


1, in accordance with the incoming inspection procedures for the inspection of raw materials, unqualified products from storage into production


2, a full set of test equipment, including tensile, impact, metallography, hardness testing machine, ensure the material performance requirements


3, in the production process of special inspection personnel, do a full-time professional inspection


4, establish inspection inspection and product sampling system, full-time inspection personnel inspection tour on the production of the various processes, working in strict accordance with the process requirement, the storage of finished product sampling by the finished product inspection personnel, to ensure that products manufactured pass rate of 100%


Tensile testing machine                                            Chemical analyzer                               Impact testing machine



    Cryogenic tank (-60 ℃)                       Hardness testing machine                  Metallurgical microscope

  • Changzhou Oilfield Petroleum Equipment Co., Ltd.

    Standard:API 5CT


    Issue Date:2018-10-29

    Expiry Date:2021-10-28

    Scope/Range:Tubing and casing and coupling

    Issued By:American Petroleum Institute

  • Changzhou Oilfield Petroleum Equipment Co., Ltd.

    Standard:API 5DP


    Issue Date:2018-10-29

    Expiry Date:2021-10-28

    Scope/Range:Drill pipe

    Issued By:American Petroleum Institute

Contact Details
Changzhou Oilfield Petroleum Equipment Co., Ltd.

Contact Person: Mr. James

Tel: 86-0519-85268163

Fax: 86-0519-85268163

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