... product has good effects when used for rubber belts, bicycle tires, motorcycle tires, rubber shoes, simulated bottom leather (artificial cowhide), rubber ... AZO is mainly used for inner tires of cars, motorcycle tires, hi-end driving belts, bicycle tires, hi-end rubber shoes, ... , etc.50X-AZO is mainly used for rubber belts, bicycle tires, rubber shoes, hi-end simulated bottom leather, frothing adhesive ...