Chain: This part is processed with Japan high quality alloyed steel
through special technique and Japan automatic net hest treatment .
He hardness of chain plate reaches at over *5HRC while the ultimate
tensile strength reaches at over *1kn, besides, the manufacturing
is proceeding to the national GB/T*********9. marking the chain cam
characterized by steedy revolving,strong resistance to shock,
abrasion and tensile. suit for all kindly of motorcycle.