Dongying Gardener Oilfield Equipment co.,ltd. is a specialized manufacturer engaging in the design and development of ESP/ESPCP and special motors and electrical equipments. the factory developed a submersible pump oil system, special technology process, product assembly, test and other manufacture capability. It also holds the scientific research capability of self-design, physical and chemical analysis, model test and special test. The self-developed QYDB series submersible pump system can sat