China OEM 1240A-Series Sprockets with high quality

1240 series engineer class sprocket is used for a wide verity of chain sizes. These sizes include 1240, CHAMPION NO. 4, 1244, R1248, SS124, API 4, LXS1242, SS124, 3 BAR HYPER, LX1245, SS124D, SS124DP IS1242, and IS1425 size chains. These sprockets are typically...