
Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
出版:Standardiserings-Kommissionen I Sverige

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Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
出版:Standardiserings-Kommissionen I Sverige
专家解读视频