... only flame cutting and welding, but also electric arc welding, argon arc weld and plasma cutting.HGQ-3000/630 Oxyhrdrogen flame ... -2 torches NC automatic cutting, flame spray, flame prcessing, electric arc welding, flame ( gas) welding, stainless steel cutting and etc ... 60 - 630 A;Unload voltage for electric arc welding: 60 - 75 A;Min.electric arc welding thickness: 1mm ( black metal);Outline ...