Draft Document - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 6: Arc and gas welding of copper and its alloys (ISO/DIS 15614-6:2021); German and English version prEN ISO 15614-6:2021
ISO/DIS 15614-6:2021起草文件-金属材料焊接工艺规范和评定-焊接工艺试验-第6部分:铜及其合金的电弧焊和气焊;德文和英文版本prEN ISO 15614-6:2021