Shanghai Sino-Korea Dooch Pump MFG Co., Ltd. is a high-tech enterprise integrated in the production and R&D of water pump and variable frequency water supply system, who is entitled as excellent small and medium-sized enterprise by Ministry of Industry and Information Technology, and editor-in-chief of national standard GB/T37892 for "digital integrated full-frequency control constant pressure water supply equipment" Dooch also is one of the first companies in the world to apply digital integrated full-frequency control technology to variable frequency water supply equipment. The company has R & D center for pump, pump inverter and control, complete water supply equipment technology. China Architecture Association Building Water Supply and Drainage Research Branch "Secondary Water Supply Full Frequency Control Technology R & D Center" is also located in Shanghai Dooch factory. Dooch has developed the world's leading digital integrated control frequency conversion water supply system, won the second prize of Science and Technology Progress Award of China Architecture Society, and the International Industrial Innovation Design Award. The secondary water supply equipment granted as the international advanced level by the Science and Technology Development Center of the Ministry of Housing and Urban-Rural Development ,China. As an outstanding enterprise in urban water supply, building pressurized water supply and energy conservation and environmental protection, Dooch provides excellent secondary pressurized product application solutions and engineering operation and maintenance services for more than 600 water supply companies in China. We adhere to the concept of "cooperation is the biggest innovation" and always work with the vast majority of water industry colleagues to innovate and share the future.