The Tianhui pipe where Cangzhou, Hebei Enzan east of the city development zone www.naimoguanjian.com 
 Automatic www.bengguan168.com w1000 t computer Hydrostatic Testing Machine, 60 t universal testing machine, Charpy impact test machine and other testing equipment, production equipment, the introduction of the United States Lincoln automatic welding, Germany MEG and Mannesmann-row roller device , its high technology, advanced technology. Produce of Q235, Q345, 20 #, X42-of X70 various models of pipe. Products Quality Supervision and Inspection Center of China's petroleum industry pipe professional pipe, steel products in Tianjin Province Quality Supervision and Inspection Station the Changzhou test detected the performance of full compliance with GB/T9711.1-1997, SY/T5037-2000, GB3022 and GB5040 standards. Widely used in oil and gas, thermal power generation, water and piling. 

 -2000 Version of the quality management system certification, and quality to win the trust of customers, and science and technology to meet the market, the product that is character and integrity of the company based on quality, full implementation of ISO9001 quality management. Passed the ISO9002 quality management system certification, and passed life. Customer satisfaction is our eternal pursuit. The company is committed to: the same quality, the lowest price. Production and management (spiral welded steel pipe Spiral steel pipe, spiral welded pipe, spiral steel pipe, spiral pipe, spiral wound pipe), the seamless steel pipe (seamless pipe), straight seam steel pipes (Longitudinal), hot-rolled steel, thermal expansion steel pipe, welded steel pipe, pressure pipe, anti-corrosion steel pipe, pipe insulation (oil and gas 2PE/3PE polyethylene coating, FBE dissolution epoxy powder pipe coating, epoxy coal tar seemed to paint, pipe cement mortar lining anti-corrosion 
 Spiral Pipe Manufacturing Co., Ltd.: spiral steel pipe, spiral pipe, spiral steel pipe prices, spiral price for one of the spiral steel pipe plant in Hebei, spiral pipe plant specializing in the production of large diameter spiral submerged arc welded steel pipe, with the spiral arc welding steel pipe of φ219-φ3620 five sets of annual production capacity of 100,000 tons, the products: large-diameter spiral welded pipe, spiral steel pipe, thick-walled spiral welded pipe, spiral welded pipe, the small-diameter spiral steel pipe, corrosion spiral steel pipe, spiral submerged arc welded pipe, large diameter buried arc welding spiral. The products are widely used in water engineering, stone, chemical industry, chemical industry, power industry, agricultural irrigation, urban construction 
 ?? For the convenience of our customers shipping, the purchase of a large gantry crane and steam cranes and fleet 24 hours. Contract, keeping promises units. 
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 Double-sided spiral submerged arc welding technology, narrowband (board) volume continuous welded from steel pipes. Has been applied widely in China's West-East and other oil and gas pipeline project, China's oil and gas pipeline project with the main tube. ? Spiral steel pipes are widely used in natural gas, petroleum, chemicals, electricity, heating, drainage, steam heating, hydropower penstock, thermal power, water and other long-distance transmission pipeline and piling, dredging, bridges, steel and other engineering fields. Longitudinal production process is simple, high efficiency, low cost, rapid development. The strength of the spiral welded pipe specifications are generally higher than the Longitudinal and spiral welded pipe specifications can narrow the billet production of large diameter welded pipe, spiral welded pipe specifications can also use the same width of the billet production of different diameters of pipe . But with the same length of straight seam tube phase