
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

專家解讀視頻
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
專家解讀視頻