Front Sprocket: 15T
Rear Sprocket: 35T
Raw Material: 1045 High Carbon Steel
Heat treatment: Rear Sprocket: High Temperature Quenching
Front Sprocket: Mesh Belt Furnace
Surface Treatment: Rear Sprocket: White Zinc Plated
Front Sprocket: Native
Packaging Details:
Carton box and plastic bag,
Slide blister, carded blister,
skin packaging shrinked plastic
or according to your requirements,there are color bag,color box,suction card,and so on