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 All I SY/T5037-2000 production φ219-φ2320, GB/T9711.1-1997 standards and APISpec5L of standards, Q235, Q345, 10 # steel, 20 # steel, 16Mn, L245, L290, L360, X42-X70 steel level of different thickness "Tian Hui" brand spiral submerged arc welded steel pipe. The products are widely used in the natural gas, petroleum, chemical, electric power, heat, water supply and drainage, steam heating, hydroelectric plants the penstock, thermal power, water and other long-distance transmission pipeline and piling, bridge, steel structure engineering. The company also industry renowned engineers five Distinguished from Jinxi Petroleum Steel Pipe Plant and Baoji Petroleum Steel Pipe Factory, in order to ensure the quality of the product. Company based on quality, the full implementation of quality management. 2001 passed the ISO9002 quality management system certification, and in May 2003 passed the ISO9001-2000 quality management system certification quality to win the trust of customers, and technology to meet the market, the product that is character, integrity is life. Customer satisfaction is our eternal pursuit. The company promises: equal quality steel, steel pipe lowest price. 

 Spiral Pipe Plant, Hebei, Hebei straight seam steel pipe plant submerged arc spiral steel pipe factory, submerged arc welding straight seam steel pipe plant, the thermal pipe plant, pipe insulation plant, insulation pipes plant, anti-corrosion steel pipe plant, anti-corrosion pipe plant, pipeline corrosion insulation factory pipe insulation preserving plant, hot-rolled steel plant, penstock plant, pressure pipe plant, pipe fittings factory, spiral steel pipe manufacturer, straight seam steel pipe manufacturer, manufacturer of hot-rolled steel penstock price spiral steel, hot-rolled steel Price, straight seam steel prices, the prices of anti-corrosion steel pipe, insulation steel prices, steel pipe production base in China, the Chinese pipe manufacturing base. Specializing in the production of different caliber grade of "Tian Hui" brand spiral steel pipe, straight seam steel pipe, hot-rolled steel pipe, thermal expansion pipe, pressure pipe, pressure pipe, anti-corrosion steel pipe anti-corrosion pipes, pipe insulation, insulation pipes, heat pipes, piling steel pipes, dredging steel pipe. Used in all SY/T5037, GB/T9711, GB/T8163, GB/T8162, APISpec5L standard. 
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