... -counterfeiting function.Ring laser marking fiber laser beam Mini size with high speed etching engraver for ... supply220V/1Kw 3. Applicable industriesIt is widely used in industrial bearings, gears, all kinds of auto ... graphic and text markings in other fields. 4. Applicable materialsGold, silver, copper, aluminum, stainless steel, hard alloy, chrome ... . Ring laser marking fiber laser beam made in China