Rubber is widely used in industry, agriculture, national defense, transportation, machinery manufacturing, medical and health fields and daily life because of its strong elasticity and good insulation, plasticity, water and air resistance, tensile and wear resistance and other characteristics.Industrial use of the transport belt, belt, a variety of sealing rings;Medical gloves and blood transfusion tubes;Rubber shoes, raincoats, warm water bags, etc. used in daily life are made with rubber as the main raw material. Aircraft, artillery, tanks used in national defense and even rockets, artificial satellites, spaceships and space shuttles in the field of cutting-edge science and technology all need a large number of rubber parts.