... , 2. Mig Welding, 3. Riveting, 4. Grinding, 5. Stamping, 6. Assembling, 7. Bending etc. Surface treatment: 1. Powder coating, 2 ... . Hot galvanized, 3. Painting, 4. Polishing, 5. Brushing, 6. Cataphoresis, 7. Chrome/Zinc/Nickel plating, 8. Electronic polish, 9 ... machines; 3. Spot welding machines; 4. Stamping machines; 5. Rolling machine; 6. Pipe bender; 7. U-shape extrusion press; 8. Cold press ...