... METAL LASER MARKING MACHINE Brief Introduction: Diode laser marking machine is a kind of laser engraving system designed for marking on the metal ... knives, scissors;Buckle sign industry: buttons, luggage buckle, belt buckle, signs, badges, cards, photographs , belts, ... titanium), metal oxide ( any kinds of metal oxide may be); Special surface treatment (phosphate, aluminum anodizing, plating surface); ...