Founded in 2010 and located in Wenzhou, Zhejiang, FDQF integrates R&D and manufacturing. Its products comply with API, ANSI, BS, DIN, JIS, GB, and other international standards, with materials covering cast iron, ductile iron, carbon steel, alloy steel, stainless steel, and chromium-molybdenum steel. Its main products include ball valves, gate valves, globe valves, and check valves, which are widely used in petrochemicals, printing and dyeing, food, electric power, pharmaceuticals, metallurgy, water supply and drainage, municipal engineering, and other sectors. The products are sold widely in China as well as in the Middle East, Europe, the Americas, and Southeast Asia.