... 1. Machine features(1) Laser marking technology in the above mentioned applications has the following features;( ... supply220V/1Kw 3. Applicable industriesIt is widely used in industrial bearings, gears, all kinds of auto ... 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