Product Description OEM Chain wheel ISO Standard Sprocket 1. Description No. Item Description 1 Name Sprocket 2 Size Products can be customized. 3 Material 45#Steel,20CrMnTi,40Cr,20CrNiMo,20MnCr5,GCR15SiMn,42CrMo,2Cr13stainless steel,Nylon,Bakelite,Copper,Aluminium.etc 4 Production Process The main process is Gear Hobbing. 5 Heat Treatment Carburizing and quenching ,High-frequency quenching,Nitriding, Hardening and tempering, Selecting heat treatment according to the different materials. 6 Testing … Continue reading China supplier OEM Chain Wheel ISO Standard Sprocket