Based on the existing production equipment with an output of 20,000 tons of silane coupling agent, Zhejiang Fu Shi Te silane company has set up a program of producing 20,000 tons of trichlorosilane, which helped to update the structure of the company ‘s products and achieve the purpose of the company's internal resources recycling. The S-silane coupling agent Si-69 and Si-75 developed by our company have been widely used in composites, especially in improving the elastic modulus and tensile strength of rubber, and remarkably improving the rubber’s function of wear-resistance, compression performance and tear resistance, while reducing the rubber’s viscosity to save processing energy.