Shanghai Zhong Qi Valve mainly produces conventional valves, and its patented products include dozens of high-end special valves such as high-pressure hydrogen valve, ultra-low temperature special valve, high-temperature and high-pressure nuclear power valve, high-temperature and high-pressure oxygen valve, natural gas regulating valve, molten salt delivery valve, molten salt delivery throttle valve, pigging receiving and dispatching valve, marine low-temperature valve, anti-coking ball valve, bidirectional hard ball valve, low-temperature opening spherical gate valve and emergency cut-off valve. The special valves produced are widely used in extremely harsh industrial and mining environments, including high temperature of 1000℃, high pressure of 4500LB and ultra-low temperature of-196℃. The products with high particles (such as mining and coal chemical industry) are widely used in petrochemical industry, coal chemical industry, power plant, heat, metallurgy, water conservancy, LNG, aerospace, paper making and so on.