... , etc.Surface treatmentNickel plating, zinc coating, chrome plating, and oxidation, Polishing, chrome plating, phosphating etcCNC machining Tolerance+/-0 ... ,zinc plating,gold plating,nickel plating or chrome plating,anodizing and painting. Ferrous turning products ... : polishing, zinc plating, nickel plating, chrome plating, powder coating, phosphate coating Brass Copper parts machining1.Materials: Cu-OF ...