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Both Y&J head office and subsidiaries have acquired certificates of ISO9001/2015, PED97/23/E, ADW0 and/or API6D issued by BV, TUV or DNV.
Our quality team is staffed with experienced and highly trained engineers. Some of them have achieved the international level of non-destructive certification of UT, MT, PT and RT, the welding certificate from AWS as well as PMP certificate from PMI.
Certificate Type Certification Issued by
Company ISO9001 BV, TUV
Company PED 97/23E TUV
Company ADW0 TUV
Company AS9100 DNV
Company IATF16949 TUV
Company  API 6D API
Company  ISO45001:2018 SHQC
Company  ISO14001:2015 SHQC
Company ISO 50001:2018 HUAYI
Company Certificate of Works Approval China Classification Society
Company ISO/IEC 17025:2017 CNAS
Personnel  Nondestructive Testing Personnel Certificate, PT/UT/MT Moody, BRIPC, LYNDT
Personnel Radiographic Testing Special Equipment Safety Supervision Bureau of PRC
Personnel  Nondestructive Testing Personnel Certificate SECTOR CERT 
Personnel  AWS Certification of Welding Inspectors American Welding Society
Personnel  Certification Scheme for Welding & Inspection Personnel TWI
Personnel  Inspector and Tester Certificate of Special Equipment,
Special Equipment Safety Supervision Bureau of PRC
Personnel  PMP
Project Management Institute