... CE approved 3. Regular, clear, durable Etch on metal marking machine Detailed Product DescriptionThe device is ... on the marking, such as stainless steel, carbon steel, all kinds of alloy steel, tool steel, carbide, aluminum, chrome, nickel, zinc materials, grinding ... and tools, medical equipment, plumbing equipment, carbide, Measuring Tool knives, machine parts, instruments, kitchen utensils, gear ...