Ningbo Zhehua Heavy Steel Pipe Manufacturing CO.,LTD,a subsidiary of SUTOR Group, is a large-scale enterprise specialized in manufacturing large-diamter, longitudinal seam,double-side, submerged-arc wellded steel pipes and spiral seam, double-side, submerge-arc welded stell pipe. The company established in 2004,the company now has more 300 employees,a registered capital of RMB60,000,000, and a 80,000 square-meters site in the Ningbo Luotuo Mechanical and Electrical Industrial Park,which is of convenient transportation, with State Highway 329 and Expressway-Ring around Ningbo City in the vicinity and port of Ningbo only 15 kilometers away.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 our company is more than 300,000 tons, and the company?s products are extensively used for pressure pipelines of water, gas and oil, and for piling pipes of large-size bridges, ports and foundations of municipal constructions.After years of operation, the company?s products quality is satisfactory to the internationally standards. The ISO9001:2000 Quality Management System Certification, API 5L,DNV,CE and ISO certificates,China National Industrial Product Manufacture License and Pressure Conduit Components Manufacture License are guarantees for stable quality of the Company?s products.Supported by its accomplished technologies, excellent staff team and advanced equipment, Ningbo Zhehua Heavy Steel Pipe Manufacturing CO.,LTD has supplied more 1,000,000 tons of special pressure pip
