Shanghai Dongrun Heat-Exchanger (上海东润换热设备股份有限公司) is a company that specializes in the production of heat exchangers. It offers pressure vessels, air and compressor coolers, heaters, condensers, and other products. The company caters to the petrochemical, chemical, and food industries as well as power plants, including nuclear, wind, solar, and traditional power stations, wind tunnel laboratories, etc.