... electroform,metal color, metal plating,electrophoresis, polishing,Aluminum color Multi-functional High speed electronic engraving machine is one of ... of practicality new type 012101210661.5, patent of outside design 01 3 10638.4, patent of invention 01105380.1 ... appliances, handicrafts, cosmetics, tour articles, fitness apparatus and aviation. Multi-functional high speed electronic engraving machine