On December 21, 2021, Li Xu, the general manager of the company, led the company's technical research and development team to participate in the technical exchange at the Institute of Fluid Research of Jiangsu University, and Gao Bo, the president, led the university's research backbone to have a friendly reception. Both parties have conducted research and discussion on technical issues related to fluid machinery, filtration industry, and our company's technological development and production processes, and have preliminarily reached a technical cooperation model that combines the guidance of the school and the provision of academic practice bases by the company.