1) Surface treatment:zine coated,sand blasting.2) Excellent and high quality control,advanced producing equipments and good control system.

3) Prompt delivery time.

4)Gear:Rear gear:34T,35T,36T,37T,56T,57T etc.

              Front gear:13T,14T,15T,16T..............

5) Treatment: High frequency hardening,carburization et

Motorcycle sprocket