Tianjin You Fa Steel Pipe Group Stock Co., Ltd. researches, develops, produces, and sells steel pipes in China. Its product range includes hot dip galvanized steel pipes, straight seam high-frequency welded steel pipes, lined plastic composite steel pipes, coated composite steel pipes, galvanized seamless steel pipes, stainless steel pipes and fittings, spiral seam double-sided submerged arc welded steel pipes, hot dip galvanized square rectangular pipes, square rectangular welded steel pipes, pipe fittings, and socket type scaffolds under the Youfa and Zhengjinyuan brands. The company also exports to North America, South America, Europe, Africa, Oceania, the Middle East, and Southeast Asia. Founded in 2000, it is headquartered in Tianjin, China.