Tires in a variety of vehicles or machinery assembled on the ground rolling circular elastic rubber products. Usually mounted on the metal rims, can bearing the body, cushioning external shocks, achieve contact with the pavement and vehicle driving performance. Tires are often used in a complex and demanding conditions, it suffers from a variety of deformation, load, as well as high and low temperature effect must have high capacity performance, traction, cushioning performance. You try to relax, and also requiring high wear resistance and resistance to flexing and low rolling resistance and heat generation. Half of world consumption of rubber used for tires production capacity of tire rubber consumption.