DIN EN ISO 17632:2016-05
焊接耗材 非合金钢和细晶粒钢气体保护和非气体保护金属电弧焊用管状药芯焊条 分类
Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2015); German version EN ISO 17632:2015