... Steel, Stainless steel, Copper , Brass, Aluminum,etc2. Type: Drilling, Milling, Turning, Broaching,ect3. Finish: Zinc plated, Aluminum oxidation,Chromated plated, Electrophoresis ... as per customers requirements or drawings.5. Application: Auto part, Medicine part, Machine part, Building part,construction machinery parts, etc. Advantages :1. Over 11 years ...