Spiral features: Longitudinal production process is simple, high efficiency, low cost, rapid development. Spiral Welded Pipe Longitudinal intensity is generally higher than that, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, with the same length of straight pipe seam, compared weld length of 30 to 100%, and lower production rate. Therefore, most of the use of smaller diameter straight seam welding pipe, large diameter spiral welded pipe are mostly used. Coil is mainly used in water engineering, petrochemical industry, chemical industry, power industry, agriculture irrigation, urban construction, the development of China's 20 key products. Used for liquid delivery: water supply, drainage. Used for gas transportation: gas, steam, liquefied petroleum gas. For structural use: for piling pipes for bridges; piers, roads, buildings and other structures http://www.hbthgg.com spiral pipe Spiral steel pipe plant http://www.thgangguan.com 
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