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About Us

“GAOFENG” has strict systems of scientific research and quality assurance

“GAOFENG” has strict systems of scientific research and quality assurance

API Official Logo - Authorization Certificate

API Official Logo - Authorization Certificate

API Official Logo Usage Authorization Certificate

API Official Logo Usage Authorization Certificate

API Official Logo Usage Authorization Certificate

API Official Logo Usage Authorization Certificate

NS-1 Certificate - Jinyang

NS-1 Certificate - Jinyang

NS-1 Certificate - Gaofeng

NS-1 Certificate - Gaofeng

Environmental Management System Certification Certificate - Chinese Version

Environmental Management System Certification Certificate - Chinese Version

Environmental Management System Certification Certificate - English Version

Environmental Management System Certification Certificate - English Version

Occupational Health and Safety Management System Certification Certificate - Chinese Version

Occupational Health and Safety Management System Certification Certificate - Chinese Version

Occupational Health and Safety Management System Certification Certificate - English Version

Occupational Health and Safety Management System Certification Certificate - English Version

Quality Management System Certification Certificate - Chinese Version

Quality Management System Certification Certificate - Chinese Version

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