... 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 ... graphic and text markings in other fields. 4. Applicable materialsGold, silver, copper, aluminum, stainless steel, hard alloy, chrome, ... laser marking fiber laser beam made in China