To drum made of seamless molded belt loop, a polyurethane material and two kinds of neoprene material. Inner core are polyester, aromatic esters, cotton material. Standard width is 330 mm. Flat belt features makes it ideal for power transmission and distribution areas. This belt has the following characteristics: - good elasticity - can be used for small diameter pulleys - the precise size, reduction of high - speed - efficiency - reduce noise and vibration - Anti-corrosive chemicals and ozone - the surface of friction since the establishment of the introduction of large companies advanced mechanical equipment and processing technology, and has well-known belt manufacturers to conduct extensive exchanges and cooperation, collaboration has developed many series of special belt.