
Specification and approval of welding procedures for metallic materials Part 4: Welding procedure tests for the arc welding of aluminium and its alloys
出版:International Organization for Standardization

专家解读视频
Specification and approval of welding procedures for metallic materials Part 4: Welding procedure tests for the arc welding of aluminium and its alloys
出版:International Organization for Standardization
专家解读视频