Shijiazhuang Tedong Valve Manufacturing Co., Ltd. (formerly Yongji Valve Factory) was founded in 1992. The company integrates R&D, production, and sales, with an annual production capacity of 20 million valves and a rich product range. We adopt advanced manufacturing processes such as bimetal friction welding, small‑end welding, face hardfacing, chrome plating of the valve stem, and laser surface treatment. The application of German QPQ salt bath ferritic nitrocarburizing technology provides wear and corrosion resistance 1.5 times higher than industry standard requirements. Equipped with fully automated inspection equipment, we strictly control product quality before shipment.Shijiazhuang Tedong Valve Manufacturing Co., Ltd. looks forward to working with global partners to co‑develop efficient, low‑carbon power solutions, drive sustainable industrial development through innovation, and achieve a green future together.