... 4.color:natural.black.blue.yellow Kinds of Roller Chain 1.material:40MN/A32.pitch:12.700mm3 ... print your own logo 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 ... ,35NP,41NP,40NP,50NP10. Coupling chains The Chain technic treatment is as below: 1.Shot peening2 ...