... Process:Punching,stamping,bending,welding,riveting ... 3. Precision machine:normal punch press 5-300 tons, turret punch press, (laser) cutting machine, hydraulic bending machine, hydraulic shearer, welding machine ... , and test facility.4. Surface finish: zinc/nickel/chrome plating, hot galvanized, painting, dichromate plating,copper wiredrawing. Machine ...