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Zhejiang Guojian Testing Technology Co., LTD. (China National Center For Quality Supervision And Test of Standard Parts Zhejiang) is a third-party independent testing institution. The company holds the ChinaMetrology Accreditation (CMA), ChinaAccredited Laboratory (CAL), China National Accreditation Service for Conformity Assessment (CNAS), National Aerospace and Defense Contractors Accreditation Program (NADCAP) of the United States, Defense Science and Technology Industry Laboratory Accreditation Committee (DILAC), Military-related confidential filing certificate,approval certificate for special equipment inspection and testing institutions, B-level qualification for non-destructive testing institutions.Zhejiang Guojian also has obtained the certification ofChina National Nuclear Corporationandis aqualified supplier for multiple main engine factories of AVIC. Zhejiang Guojianis engaged in technical services such as chemical composition analysis, mechanical property testing, metallographic analysis, non-destructive testing, failure analysis, functional characteristic research, and quality status evaluation of materials in service environment for metal materials and products, fastener series products, welded parts, failed parts, paints and coatings, etc.