DIN EN ISO 14341:2020-12
焊接耗材 非合金钢和细晶粒钢气体保护金属电弧焊的焊丝电极和焊缝沉积物 分类
Welding consumables - Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels - Classification (ISO 14341:2020); German version EN ISO 14341:2020