... ISO certificated 3, High quality controlled 4, Secondary process available 5, OEM precision casting stainless steel About usYaopeng ... metal parts, including CNC machining, stamping meatal parts, and Casting. We are committed to provide high quality products ... treatment:Zinc plating, Anodization, Chemical fim, Powder, Passivation, Sand blasting, Brushing & ploshing etc.3) Our services:Machining, Turning ...