... processing auto parts 2,Various material available 3,Machined to Drawing or Samples 4,ISO,MTC 1, Material: stainless steel&copper&aluminum2, Usage: auto ... and transportation. etc.3, Standard: according to the dimension tolerance of machining of customers’ requirement.4, Surface roughness: Ra0.8-3.25 ... , chrome-plated, hot-galvanized, sandblasting, painting, powder-coating. Metal processing auto parts