1.dilivery promptly 2.high quanlity 3.OEM offered 4.free samples 5.material45C( 45#, S45C)

  

1.single precision short-pitch roller chain sprocket

  06B  08B 10A 12A 16A 20A 24A 28A 32A 40A

2.other sprocket

   design to manufacture or processing of samples to the map

hight -quality sprocket