HENGDA JIANGHAI.HENGDA JIANGHAI is a specialized manufacturer of high-end large submersible electric pump units and a comprehensive technical service provider offering integrated solutions for safe and efficient drainage systems. As the designated production facility for submersible motors and electric pumps under the former Ministry of Machinery Industry, the company represents the cradle of China's large submersible motor and pump technology, embodying the developmental history and technical standards of the nation's medium-to-large submersible equipment. The company primarily engages in the R&D, production, and sales of large and medium-sized submersible electric pump units, possessing full-series real-machine testing capabilities for such equipment. Its products integrate submersible motors, submersible pumps, and intelligent control systems, serving sectors including water conservancy projects, municipal construction, mine drainage, and emergency rescue. Related technologies hold future potential for expansion into applications such as pumped-storage power station pumping systems, marine mineral resource extraction, underwater vehicle propulsion, and deep-diving drive motors. Key products include explosion-proof submersible electric pumps for mining, submersible axial-flow pump units, and intelligent control systems for submersible electric pumps.