... electrophoresis, polishing,Aluminum color Multi-functional High speed electronic engraving machine is one of used ... , via of testing report from National product quality & control bureau: NPQC No.3. 200150013 ... lighter, glasses rims, kitchenware, hardware, crust of electronic equipment, clothes accessories, leather accessories, etc. 8 ... can be embossed one plating layer of 0-1.5mm on the surface of metal ...