... Style:Manufacture and OEM Main products as the following: 1.Motorcycle Chains: 25H (04CH), 415, 415H, 420, 420H, ... 530H, 05MA, 05MB, 05MC, 06MC 2. O-Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series ... xw-chains: 420,428,520,525,530,630 (Racing Chains)7. Leaf chains: LH series8. Double pitch ... .Carburizing8.Quenching9.Tempering10.Oiling11.Greasing motorcycle chain roller chain