... steel, carbon steel, various alloy steel.Tool steel, carbide, copper alloy, a variety of chrome, nickel, zincmaterial, a variety ... ;2. stainless steel products, stainless steelproducts, cups, cylinders, pots, tableware and kitchenware, heater3. instrumentation components, electronic components, and toolsequipment, clocks ... is printed out. Metal electric marking machine for steel/copper/aluminum