... Metal marking machine, gilding machine, electroforming machine, metal scutcheon machine, metal color machine, Plating machine, copper(steel)print machine, electrophoresis machine, Electric brush machine, embossed gold machine, polishing machine. This product ... . Work as one of electrotyping machine: It can be electroformed of nickel, copper, iron, chromium, tin, zinc, 24k gold, pure silver, etc ...