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CERTIFICATE OF CONFORMITY OF QUALITY MANAGEMENT SYSTEM CERTIFICATION

CERTIFICATE OF CONFORMITY OF GJB QUALITY MANAGEMENT SYSTEM CERTIFICATION

ISO/TS 16949 :2009

IATF 16949 Certification

GJB9001C-2017

Utility model patent certificate

Patent certificate - an automatic control vertical straightening unit

Patent certificate - an automatic grinding device for silver bright bar
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