Tianjin YouFa Steel Pipe Group Co., Ltd. was founded on July 1, 2000, with the headquarters located at the largest steel pipe production base in China-Daqiuzhuang Village, Tianjin City, and it is the largest steel pipe manufacturing enterprise producing many kinds of steel pipes, including ERW steel pipe, hot dipped galvanized steel pipe, plastic lining compound steel pipe, plastic-coated steel pipe, square and rectangular steel pipe, hot dipped galvanized rectangular steel pipe, spiral steel pipe, highway protecting plate and possesses "Youfa" and " Zhengjinyuan" brands. Now it has formed three production bases in Tianjin, Tangshan and Handan, owns 9 steel pipe enterprises with a total of 152 production lines, 1 highway protecting plate factory, 1 waste acid and wastewater processing plant, nearly 10,000 employees, 2 approved national level laboratories and the only one industry-university-research R&D institution in the industry-"Tianjin Welded Steel Pipe Technology Engineering Center". Products produced by three production bases are sold to 100 countries and regions such as North America, South America, European Union, Africa, Southeast Asia, Middle East, Oceania and Hong Kong successively. It produced over 12 million tons of various steel pipes in 2016. In case of head-to-tail connection of steel pipes produced by Youfa every week, they will make a circuit of the earth. Youfa's production and sales volume have ranked No. 1 for consecutive 10 years in China. And it has ranked among top 500 enterprises in China and top 500 enterprises in China's manufacturing industry.