China supplier Motorcycle Roller Chain 428h

Product Description 1)Type Motorcycle Chain 2)Materials Grade A Steel: 40Mn(Plate) 30CrMnTi(Pin) 20Mn(Bush) Mn10(Roller) 65Mn(Clip) 3)Chain No. 428H 4)Warranty 30000 KMs 5)Process Sand blasting, Heat treatment,  High speed impact, Four sides riveting, ...