... .Standards:ISO/DIN/ANSI 2.Good quality with best delivery time 3.Made Style:Manufacture and OEM Industiral Roller chain ,Main products ... , 530, 530H, 05MA, 05MB, 05MC, 06MC 2. O-Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series and B series4 ... .Nickel-plated5.Zincing6.Heat treatment7.Carburizing8.Quenching9.Tempering10.Oiling11.Greasing roller chain a series