... 0.6-17.0mm Kinds of combine roller chains 1.material:40MN/A32.pitch:12.700mm3. ... your own logo Main products as the following: 1.Motorcycle Chains: 25H (04CH), 415, 415H, 420, 420H, 428, ... A66. O-ring chains and xw-chains: 420,428,520,525,530,630 (Racing Chains)7. Leaf chains: LH series8. ... Double pitch conveyor chains with attachments: 2040,2050,2060 ...