Tianjin Yuantai Derun Pipe Manufacturing Group Co., Ltd. is located in the biggest pipes-manufacturing base-Daqiuzhuang industrial zone in Jinghai Tianjin.Tianjin Yuantai Derun Pipe Manufacturing Group Co., Ltd. includes 10 subsidiaries. It deserves a large united enterprise group with a registered fund of USD 65 million and fixed assets of USD 200 million. With annual production capacity of 5 million tons, Yuantai Derun is the biggest manufacturer of ERW square, rectangular pipe, hollow section pipe, galvanized pipe in China. Yuantai Derun has 59 production lines of black ERW pipe, 10 production lines of galvanized pipe. Square steel pipe from 20*20*1mm to 500*500*40mm, rectangular steel pipe from 20*30*1.2mm to 400*600*40mm.Yuantai Derun can manufacture square rectangular pipes as per the standards of ASTM A500,JIS G3466, EN10219. Yuantai Derun has the biggest square rectangular pipe stock in China which can meet customer's direct procurement requirement. The products were used for many famous projects such as Dubai World Expo,Qatar Airport etc. Yuantai Derun obtained the certificates of ISO9001-2008, EN10219 &EN10210, JIS G3466.