Tianjin Zhengda General Steel Pipe Technology Co., Ltd. is a large scale welded steel pipe manufacturer and welded steel pipe equipment manufacturer. Our pipe steel pipe factory is located in Qian’an,Website:http://www.tjzdpipe.com, Hebei province, China. It covers an area of 470000 square meters and has 1700 employees. The production capacity of our pipe factory is up to two million tons per year. The plant can produce ERW steel pipe, galvanized steel pipe, SSAW steel pipe, square steel pipe, steel-plastic composite pipe. We have 55 pipe mill lines in total, including 12 ERW round pipe mill lines, 12 ERW square steel pipe mill lines, 11 galvanized steel pipe mill lines, 5 SSAW steel pipe mill lines and 4 steel-plastic composite pipe mill lines. Our welded pipes are generally used in oil and natural gas pipe line, water supply and drainage, fire control, CNG, heating supply, steam delivery and other Low pressure fluid delivery, also the frame, threading, steel structure and so on. Many famous projects adopt our pipes such as South-to-North Water Diversion Project, Shanghai world EXPO, Hangzhou Bay Bridge, Henan inter-city railway Yellow River bridge, Wuhan Changjiang River Tunnel, SanBanXi dam, Jinan Olympic Sports Center, Shiwu high speed way.