Shanghai Hugong Valve Factory (Group) Co., Ltd. (formerly Shanghai Hugong Valve Factory), Shanghai High-tech Enterprise, Shanghai Civilized Unit. HG Shanghai valve, Shanghai famous brand, Shanghai famous brand. It is a large-scale valve manufacturer with a history of several decades. It is a major valve manufacturer, supplier of gate valves, globe valves, ball valves, butterfly valves, hydraulic control valves, etc. It has a high reputation and influence in the petroleum, chemical, metallurgy, power, construction, heating, water supply and other industries. Products have been in short supply and sold well in domestic and foreign markets.