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Jonyang has a complete quality management system for effective operation.


Jonyang has passed the certification of ISO9001:2008 quality management system conducted by Det Norske Veritas(DNV)in 1995. In 2008, Jonyang passed the certification of GJB9001A-2001 (national military standards) quality management system. Jonyang has cultivated a number of Internal Quality Auditors and conducts a second time internal audit each year to ensure the effective operation and continuous improvement of the company’s Quality Assurance System.

Quality Guidelines : customer centered, quality first, continuous improvement and pursue excellence.





Metal pendulum impact testing machine


Three coordinate measuring instrument


Microcomputer controlled electro-hydraulic servo universal testing machine
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