STONG was founded in 2007 and is located in Wenzhou, Zhejiang, with a paid-in registered capital of 10.08 million RMB. The company specializes in American standard valve manufacturing, covering multiple diameter and pressure levels, with materials including carbon steel, stainless steel, and heat-resistant alloy steel. Its products are well sold in China and exported to Southeast Asia, the Middle East, Europe, and the Americas. Equipped with CNC machining, pressure testing benches, and non-destructive testing equipment, the company has obtained ISO9001, TS, and API certifications. The products are applied in petrochemicals, power metallurgy, water treatment, pharmaceuticals, papermaking, coal and fertilizer industries, and more. The main products include ball valves, gate valves, globe valves, check valves, low-temperature valves, Y-type strainers, flanges, and pipe fittings.