... gilding,electroform,metal color, metal plating,electrophoresis, polishing,Aluminum color Multi-functional High speed electronic engraving machine is one of used specific ... type 012101210661.5, patent of outside design 01 3 10638.4, patent of invention 01105380.1 etc, via of testing ... roll plating, it suit for all noble metals plating industries. 4. Work as one of electrotyping machine: It can be ...