... stainless steel, carbon steel, various alloy steel.Tool steel, carbide, copper alloy, a variety of chrome, nickel, zincmaterial, a variety of ... , deep in5-100um,Easy to operate,the advantage ofregular, clear, durable, non-color, non-shedding, high temperature, organicsolventscrubbing.Justa few secondscanbe ... logothat is printed out. Metal electric marking machine for steel/copper/aluminum