... , stainless steel, aluminum, brass, copper, iron and cast iron LW426 Laser Welding machineSpecifications:TIG 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 cutter ... thickness (mm) : 1-12Arc mode High-frequency Contact High-frequency laser welding machine for metal sheet