SHENNAI.SHENNAI was established on April 1, 2004, with its registered office located in Pudong New Area, Shanghai. It is a specialized manufacturer of various types of automatic control valves and pumps; an economic entity integrating scientific research and development, design consulting, production, and sales. Over the years, the company has achieved continuous growth thanks to the care and support of leaders at all levels and our extensive base of new and long-standing customers. Operating under the ISO 9001 international quality management system certification, the company ensures product quality and has steadily enhanced its reputation for excellence. To compete in the global market following China's accession to the WTO, SHENNAI relies on scientific management and technological innovation to strengthen its core competitiveness, continuously optimize its product portfolio, and elevate product quality. For years, it has earned consistent praise from both new and long-standing customers. Primary product lines include: Control Valve Series, Manual Valve Series, and Diaphragm Pump Series.