... in the air,week corrosion resistanceAnodizingThrough an eletrical process to form a certain layer of anodic layer ... silver,champagne,bronze,dark,golden,etcEletropharesisBase on anodized process,an extra transparent film is formed to make ... transfering are both availablePolishingBy buffing and chemical process to form mirror like finish,suitable for decorative application 4,Packing information: ...