GB/T 5293-2018埋弧焊用非合金钢及细晶粒钢实心焊丝、药芯焊丝和焊丝-焊剂组合分类要求国家标准
英文:Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non allo...
英文:Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non allo...