Longkou Zhengyu Electromechanical Equipment Manufacturing Co., Ltd. is specialized in the production of "Aogong" brand flameproof submersible sewage pumps, flameproof submersible pumps and pump automatic controllers. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!