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ISO 15614-1-2012 Specification and qualification of welding procedures for metallic materials -wekding procedure testing part 1: arc and gas welding of steels and arc welding of nickel and nickel alloys 金属材料的焊接程序规范和评定 焊接工艺试验 第1部分:钢的电弧焊和气焊与镍及镍合金的电弧焊(中文) |
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