SUFA VALVE check valves.SUFA VALVE, formerly known as Suzhou Iron Works (later changed to Suzhou Valve Factory) established in 1952, is a technology-based manufacturing enterprise integrating R&D, design, manufacturing and sales of industrial valves, supplying valves for the petroleum, natural gas, oil refining, nuclear power, electric power, metallurgy, chemical industry, shipbuilding, papermaking, pharmaceutical and other industries. The company was listed on the Shenzhen Stock Exchange in 1997, becoming the first listed enterprise in China's valve industry and China National Nuclear Corporation, and has a specialized industrial valve production base with many varieties, complete specifications and high technology content in the domestic valve industry, and is an enterprise with complete certificates of accreditation, advanced quality management and testing methods in the same industry in China. The company's existing holding subsidiaries, shareholding companies, a total of 8, involving valve manufacturing, testing, nuclear technology applications and financial and other fields. The main products include: butterfly valves, gate valves, check valves, filters, solenoid valves, ball valves, globe valves, exhaust valves, copper valves, electric gate valves.