With the continuous development of the automobile industry, the demand for products in this industry is increasing year by year, and the amount of rubber seals used is also increasing. The sealing ring belongs to static seal and dynamic seal, and the performance requirements are extremely high. Especially when the product is used in different areas, the high temperature resistance and low temperature resistance of the product and the oil of different media are required to be higher. And our products can meet these requirements. It has been widely used in BMW, Honda, Toyota, Mercedes-Benz Chery and other well-known brands.