... /ANSI/DIN fast delivery 415 good quality motorcycle roller chain,1)material:40mn2)color : nature,black,blue ... packing as your requirementMain products as the following1)roller chains: A series(12.7-63.5mm ... ,428H,520,520H,6303)short pitch conveyor roller chain attachments:A-1,A-2.K-1, ... H series5)agricultural chains:C212A series,ZGS38 combine chain series,3558T, rice harvester chains attachments6)simplex, ...