ICs25.160.40J33中华人民共和国国家标准GB/T26953-2011焊缝无损检测焊缝渗透检测验收等级Non-destructive testing of welds-Penetrant testing of welds-Acceptance levels(ISO23277:2006,MOD)2...
ICS25.160.40J33中华人民共和国国家标准GB/T26952-2011焊缝无损检测焊缝磁粉检测验收等级Non-destructive testing of welds-Magnetic particle testing of welds-Acceptance levels(ISO23278:20...