... motorcycle sprocket 1.Professional sprocket Manufacturer 2.regular sprocket supplies 3.certificate :ISO9001/2000 Product feature1, material: A3, 45Mn, 40Mn, and other high ... , galvanization, chroming, electrophoresis, 3, processing: heat treatment, high frequency quenching, surface hardening treatment4, packaging: inner plastic bag ... to customer's requirement CG125 motorcycle sprocket and chain