... in compounding; Convenient in operation. This machine is equipped with credible outer water-cooling system, which can supply dependable guarantee ... effect than lamp-pump laser machine in metal marking field Applicable Scope: Ordinary metal and alloy (all metal like ... iron, copper, aluminium, magnesium, zinc, etcâ?¦), rare metal and alloy(gold, silver, titanium), metal oxides, ABS materials (enclosures ...