1. Warehousing of ARP Reducer
 2. Disassembling
 3. Washing
 4. Inspection
 5. Manufacturing Pinion Gear Shaft
 6. Manufacturing Wheel Gear
 7. Assembly of Shaft & Wheel Gear
 8. Replacement of Bearing & Retainer
 9. Assembly
 10. Performance Test
 11. Rust control, Painting, and Packaging