... on metal, steel, flat & cambered surface 2.CE approved 3. Regular, clear, durable Chemical etching machine Detailed Product DescriptionThe device ... Globoidal, thin slices can print. Fine print, in-depth 5-100 um, simple, a few seconds to imaging, ... tools, medical equipment, plumbing equipment, carbide, Measuring Tool knives, machine parts, instruments, kitchen utensils, gear bearings, valves signs, ...