... quality with best delivery time 3.Made Style:Manufacture and OEM Industiral Roller chain ,Main products as the following ... Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series and B series4. Silent chains: SC3,SC4,SC5,SC6,SC8 ... A0,A1,A3,A4,A5,A66. O-ring chains and xw-chains: 420,428,520,525,530,630 (Racing ... .Carburizing8.Quenching9.Tempering10.Oiling11.Greasing roller chain a series