... Roller chains1,Specifications:1)A series chains:a) simplex:06C-1,08A-1,10A-1,12A-1,16A-1,20A-1,24A-1,28A-1,32A-1,40A-1b) duplex ... ) quadruplex and so on2)B series chains:a) simplex:06B-1,08B-1,10B-1,12B-1,16B-1,20B-1,24B-1,28B-1,32B-1b) duplex:06B ...