Longking has in-depth cooperation with Tsinghua University, Hangzhou Water Treatment Technology Development Center, GE, Dow Chemical Company, Asahi Glass Company and other domestic and foreign scientific research units and well-known enterprises, and is committed to the standard discharge, reuse and zero discharge (including crystalline salt) business of industrial and mining wastewater. EPC, BOT, BOO and other business models can be provided to petrochemical, coal chemical, electric power, electronics, steel, mining and other industries.