... market Summary introduction Renqiu City Huading Automobile Parts Co., Ltd is a major manufacturer specializing in motorcycle chain sprocket products for 17 years. ... CG125,GN125,NXR,CD100,XLR,TVS,YB100,CB125,CD80,A100 and so on.Raw-materialsQ345B(45#), Q235B(A3#), 16Mn ... etcHeat treatmentHigh frequency hardening on the teeth for 1045 steelCarburization for 1023 steel (plain iron) ...