In order to achieve the overall upgrading and replacement of rotary valves such as butterfly valves and ball valves, and to make them widely used in industrial automation control systems, and to replace similar foreign products, the company has introduced high-level innovative talents to work with enterprises to develop a new series of structural product designs for corner valve sealing pairs, select and match materials for corner valve sealing pairs, study the service life and friction failure of corner valve sealing pairs, and research the surface hardening process of sealing pairs in accordance with the requirements of the "Double Innovation Plan" in Xuzhou City. To this end, we will publish 2-3 papers, apply for 1-2 invention patents, apply for 2-4 utility model patents, and receive government funding of 300000 to 500000 yuan from the "Double Innovation Plan".