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CERTIFICATE OF AUTHORITY TO USE OFFICIAL MONOGRAM OF API(PDC BIT,DOWNHOLE MOTOR)
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CERTIFICATE OF AUTHORITY TO USE OFFICIAL MINOGRAM OF API(PUMPING UNITS)
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CERTIFICATE OF CONFORMITY OF QUALITY SYSTEM CERTIFICATION(ISO9001)
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CERTIFICATE FOR PERFCTING THE SYSTEM OF INSPECTION MEASUREMENT AND TEST(ISO10012)
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CERTIFICATE FOR CONTRACT-EMPHASIZED AND CREDIT-HOLD COMPANY
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MEMBERSHIP CERTIFICATE OF CHINA PETROLEUM MATERIAL AND EQUIPMENT NETWORK
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HIGH-TECH ENTERPRISE CERTIFICATE AWARDED BY CNPC
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AUTHORIZATION LICENSE FOR DOWNHOLE MOTOR MANUFACTURING GRANTED BY SMITH INTERNATIONAL
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CERTIFICATE OF APPROVAL FOR ENTERPRISES WITH FOREIGN TRADE RIGHTS IN CHINA
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REGISTRATION CERTIFICATE OF COMPANY WHO HAVING RIGHT TO APPLY TO THE CUSTOMS INDEPENDENTLY
