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International Standard Category: Welding, brazing and soldering in general

QJ 2344A-1997    Welder Qualification and Certification of Aviation Industry
航天工业焊工的资格鉴定与认证 ;
Category No.:25.160.01 Valid Status:valid
Issued Organization: Issued Date:1997-04-17
Implemented Date:1997-5-26 Abolished Date:
Superseded Standard.: Superseded Date:
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