
Specification and qualification of metal welding technologies - Qualification by adopting standard welding technology
出版:Polish Committee for Standardization

专家解读视频
EN ISO 15612 : 2004 - Identical
EN ISO 15612 :2018 - Identical
ISO 15612:2018 - Identical
EN ISO 15612 : 2004 - Identical
EN ISO 15612 :2018 - Identical
ISO 15612:2018 - Identical