GB/T 8110-2020熔化极气体保护电弧焊用非合金钢及细晶粒钢实心焊丝标准
英文:Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels GB/T 8110-202...
英文:Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels GB/T 8110-202...