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Welcome to the official website of Jiangsu Yidelong Petroleum Machinery Co., Ltd!
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Intellectual property management sys…
Business license
High-tech enterprise technology cert…
Jiangsu Province Specialized, New, S…
Special equipment manufacturing lice…
Measuring AAA
Measurement management system certif…
ISO 9001 quality management system c…
Environmental management system cert…
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CNAS national laboratory
API Specification Q1
API-6A
API-16A
API-16C
CNPC well control qualification cert…
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