... steel and brass.·Surface treatments: plating, powder coating, phosphate and anodizing.·Processing method: castings, forgings, extrusions, CNC ... packing are under inspection according to ISO9001:2008. What is Advantages of our cnc machine parts ? 1. zero ... surface treatment(blackening, anodizing, zinc, nickel, chrome plating, phosphate coating, Mirror surface,) 4.cnc machine parts Quality control ...