Steel tube

With one domestically advanced JCOE production line for large-diameter, double-side, submerged-arc welded steel pipes, three US Lincoln production lines for spiral seam, double-side, submerged-arc welded steel pipes and two REF production lines for roll-bending, double-side, submerged-arc welded steel pipes, the Company is specialized in manufacturing large-diameter, double-side, submerged-arc welded steel pipes and spiral seam steel pipes, with diameters from 219mm to 3420mm and thickness from 6mm to 45mm. The annual manufacturing capacity of Ningbo Zhehua Heavy Steel Pipe Manufacturing Co., Ltd. is more than 300,000 tons, and the Company’s products are extensively used for pressure pipelines of water, oil and gas, and for piling pipes of large-size bridges, ports and foundations of municipal constructions. Product Features Our products meet various standards including ISO9000-ISO9001/2000 and meet the requirements of our customers. Standards ISO/CD2 9001-2000 API Q1 (edition 6) Product Applications Supported by its accomplished technologies, outstanding employees and advanced equipment, Ningbo Zhehua Heavy Steel Pipe Manufacturing Co., Ltd. has supplied special pressure pipes and fittings to many high profile projects including Hangzhou Bay Bridge, Shaoxing Binhai New Development Zone, Zhoushan Continental Water Diversion Works, Huzhou Tiger Pond Reservoir Water Diversion Work, Yong-Tai-Wen (Ningbo-Taizhou-Wenzhou) Railway and Wen-Fu (Wenzhou-Fuzhou) Railway, Jin Run 300,000-ton Port, Caofeidian Iron and Steel Base Project of Capital Iron and Steel Company, German Bayer Project, Zhenhai Refining and Chemicals Project, Leqing Power Plant, Lanxi Power Plant, etc.