Draft Document - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 2: Arc welding of aluminium and its alloys (ISO/DIS 15614-2:2022); German and English version prEN ISO 15614-2:2022
起草文件.金属材料焊接程序的规范和评定.焊接程序试验.第2部分:铝及其合金的电弧焊(ISO/DIS 15614-2:2022);德语和英语版本prEN ISO 15614-2:2022