Material:45# steel,A3 steel,16# Mn

Brand Name:Jin Hao

Model Number:415,420,428,428H,520

Heat treatment:High frenquency quenching,Carburization

Surface treatment : Electrophoresis,Cr-plating,Galvanized,Sandblasting

 

1)Professional Manufacturer
2)Wide range of chain & sprocket
3)High quality low price
4)OEM