當(dāng)前位置:
首頁 >
標(biāo)準(zhǔn)詳情頁

Specification and qualification of welding procedures for metallic materials - Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys - Amendment 2
出版:International Organization for Standardization

專家解讀視頻