... new type 012101210661.5, patent of outside design 01 3 10638.4, patent of invention 01105380 ... machine: This products can be used at the same time in the circumstance of engraving black or ... deposited its idiozomes on the surface of metal, which forming a various of bright, gold, red, ... can use one specific liquid, which process electrolyse with work piece in the anode position, and polishing ...