CERTIFICATE
SCAN_20170208_14431612
  • SCAN_20170208_14431612

  • new ISO certificate

  • safety production license

    Western Drilling Engineering Corporation of CNPC

  • Oil company Quality Certificate

    Oil company Quality Certificate

  • API CERTIFICATE

    API CERTIFICATE

  • CHINA Petroleum & Chemical Industry Association

    CHINA Petroleum & Chemical Industry Association

SCAN_20170208_14431612

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