As a “little giant” enterprise of the Ministry of Industry and Information Technology of the People’s Republic of China, Changsha Dewater Machinery Technology Co., Ltd. has always been specializing on the R&D, production and sales of the “mobile emergency water supply and drainage equipment over the last 11 years. Dewater has a national-grade CNAS testing station, as well as 72 R&D patents. Its products are widely used in emergency incidents, drainage, firefighting, municipal maintenance, water conservancy, drainage of mines and other relevant fields. In 2012, Dewater Technology developed the first permanent magnetic submersible electric pump in an innovative manner. Utilizing the high-power density permanent magnets and aluminum-magnesium alloy materials, it adhered to a high-quality hydraulic model to achieve a dramatic breakthrough in the constraints due to mass and volume with a technical reform of 90% weight reduction for similar products.