... .Equipment :CNC ,EDM ,milling machine ,lathing machine ,turning maching,wire cut machine and so on 2.Material :aluminum, mild steel, stainless steel, chrome steel, cold ... , bronze, chrome copper, mold steel , teflon ,PVC, bakelite, nylon, delrin, arcylic and so on. 3.Surface treatment:hardening, carburizing, high frequency, anodizing ...