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Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. was established in March 2002 and is located in Daqiuzhuang Industrial Zone, the largest pipe manufacturing base in Jinghai District, Tianjin. The largest production enterprise of ERW square pipes, hollow pipes, galvanized pipes, and spiral welded pipes in China A large joint enterprise group with fixed assets of 200 million US dollars, it is one of the top 500 private enterprises in China and one of the top 500 manufacturing enterprises in China. The company has an annual production capacity of 10 million tons, more than 100 steel pipe production lines, and more than 100 steel hollow section technology patents Tianjin Yuantai Group has 65 black high-frequency welded steel pipe production lines, 26 hot-dip galvanized steel pipe processing production lines, 10 pre-galvanized steel pipe production lines, 8 photovoltaic support production lines, 6 ZMA steel pipe production lines, 3 spiral welded pipe production lines, 2 ZMA steel coil production lines, and 1 JCOE production line. Production types include ERW, LSAW, HFW, SSAW, seamless, hot rolled, cold drawn, hot worked, etc Square pipe from 20 * 20 * 1mm to 500 * 500 * 40mm, rectangular pipe from 20 * 30 * 1.2mm to 400 * 600 * 40mm, welded pipe from 2 "-60" can be manufactured Yuantai Derun can produce square rectangular tubes according to ASTM A500, JIS G3466, and EN10219 standards. We have the largest inventory of square rectangular tubes in China, which can meet customers' direct procurement needs. Our products are suitable for different industries, have rich project experience, and are exported to various parts of the world.