Founded in 1985 and located in Wenzhou, Zhejiang, AOLONG VALVE specializes in the design and manufacturing of valves. The company occupies 8,200 m² of facility space and employs over 120 staff, including 22 senior engineers. Its product range covers Chinese (GB), American (ANSI), German (DIN), and other standards, including gate valves, globe valves, ball valves, butterfly valves, control valves, check valves, and more than a thousand varieties, with non-standard customization also supported. Available materials include carbon steel, stainless steel, heat-resistant steel, Monel, duplex steel, and others, with bore sizes from DN10 to DN3200, pressure ratings from 0.6 to 42 MPa, and temperature resistance from -196°C to 815°C. These products are widely used in chemicals, petroleum, metallurgy, environmental protection, electric power, aerospace, and other industries, and are exported to Europe, the Americas, the Middle East, Southeast Asia, and other regions. Its main product lines include ball valves, butterfly valves, gate valves, globe valves, and check valves.