we are one-stop purchasing factory about metal product, from produce, machining, assembly, and to surface treatment.Anodizing surface treatmentInstructionUse chemistry to produce a layer of aluminum oxide film on the surface(Al203), having protective, decorative, insulating, wear resistance effectTechnical characteristicsEnhance strengthAchieve any color other than whiteNickel-free sealingThicknessthickness from 17-22 μmcolorFor anodization and eletrophoretic painting: silver, bronze, champagne, nickel, golden yellow, etc.