
Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO 3690:2018)
出版:Osterreichisches Normungsinstitut/Austrian Standards

专家解读视频
EN ISO 3690:2018 - Identical
ISO 3690:2018 - Identical
EN ISO 3690 : 2012 - Identical
EN ISO 3690:2018 - Identical
EN ISO 3690 : 2012 - Identical