1.CE,CCC approved,OEM accept 2. Rate Duty Cycle is 60% inverter welding equipment/welding equipment/welding tool CT-Z series DC inverter MMA/TIG/CUT welder/welding machine(CT520Z) We can use your logo,your design,your colorTIG Welder - Uses a special Tungsten tip, Argon gas, and electricity to weld metal.ARC/MMA Welder - Use standard welding rods to weld metal including steel, and aluminum.Plasma ...