Duplex roller chains for ANSI 60-3 1) material:40Mn 2) plate thickness:2 ... 3) color:natural,black,blue,yellow ANSI 60-23Aseries duplex roller chains(12A-3R)1)material : 40mn2)pitch : 19.05mm3) ... also can packing as your requirementMain products as the following1)roller chains: A series(12.7-50.8mm pitches),B ... 428,428H,520,530,630,25,25H3)short pitch conveyor roller chain attachments:A-1,A-2.K-1,K-2,SA ...