ISO 20378:2017 焊接材料非合金和抗蠕变钢气焊棒分类

标准编号：ISO 20378:2017

中文名称：焊接材料非合金和抗蠕变钢气焊棒分类

英文名称：Welding consumables — Rods for gas welding of non-alloy and creep-resisting steels — Classification