... plating,electrophoresis, polishing,Aluminum color Multi-functional High speed electronic engraving machine is one of used specific ... 012101210661.5, patent of outside design 01 3 10638.4, patent of invention 01105380.1 etc, ... for engraving any picture on it. with high precision, high speed, lower cost, no limit for the engraving ... It can be embossed one plating layer of 0-1.5mm on the surface of metal, ...