Especially designed give it high load capability and more than 200, 000 km service life. Tooth formed in accurate mold profile with professional calculation as per customers' detailed requirements. The belts are made up of strong high modulus threads and special neoprene rubber compound. It is vulcanized to shape for only one time, with better intergrality. The belts have the equal bear foerce, move blacidity, the force of bear the weight is high, long life, twitter and overturn difficulty. It is fit for occasion which is transimission burthen and concussion librate.