Hangzhou steel pipe, Hangzhou, Hangzhou, seamless steel pipe spiral Hangzhou drainage pipe 000 quality management system certification, quality to win the trust of customers, science and technology to meet the market, the product that is character, integrity quality based on the full implementation of ISO9001 quality management. Passed the ISO9002 quality management system certification, and passed is life. Customer satisfaction is our eternal pursuit. The company promises: the same quality, the lowest price. Production operating spiral steel pipe (spiral welded steel pipe, spiral welded pipe, spiral steel pipe, spiral pipe, spiral wound pipe), seamless steel pipe (seamless pipe), straight seam steel pipe (Longitudinal), hot-rolled steel pipe, thermal expansion pipe, welded steel pipe, pressure pipe, anti-corrosion steel pipe, pipe insulation (oil and gas 2PE/3PE polyethylene layer FBE epoxy powder dissolved pipe coating, coal tar epoxy as if paint, steel cement mortar lining anti-corrosion Spiral Pipe Manufacturing Co., Ltd.: Spiral steel pipe, spiral pipe, spiral steel pipe price spiral price of one of the spiral steel pipe factory in Hebei, spiral pipe plant specializing in the production of large diameter spiral submerged arc welded steel pipe, with 5 sets of of φ219-φ3620 spiral arc welded steel annual production capacity of 10 tons, the product: large diameter spiral welded pipe, spiral steel pipe, thick-walled spiral welded pipe, spiral welded pipe, small diameter spiral steel pipe, corrosion spiral steel pipe, spiral submerged arc welded pipe, large diameter helical submerged arc welding. products are widely used in water engineering stone, chemical industry, chemical industry, power industry, agricultural irrigation, urban construction in order to facilitate the majority of customers shipping, the purchase of the large gantry crane and a steam crane and fleet 24-hour service contract, keeping promises units. sided spiral submerged arc welding technology, narrowband (board) volume continuous welded steel pipe in China's natural gas and other long-distance gas pipeline project in the extensive application of China's oil and gas transmission pipeline engineering main tube. spiral steel pipe widely used in natural gas, petroleum, chemical, electric power, heat, water supply and drainage, steam heating, hydropower penstock, power, water and other long-distance transmission pipelines and piling, dredging, bridges, steel and other engineering fields. Longitudinal production process is simple, high efficiency, low cost, rapid development of spiral welded pipe Longitudinal generally higher than the spiral welded pipe specifications can narrow the billet production of large diameter pipe, spiral welded pipe specifications can also use the same width of the billet production of different diameters of pipe, but compared with the same length of straight seam pipe, spiral welded pipe weld length of 30 to 100%, and lower production rate of spiral welded pipe specifications, therefore, most of the smaller diameter pipe a straight seam welded pipe of large diameter are mostly spiral welded pipe 1. general low pressure fluid submerged arc welded spiral welded pipe (SY5037-2000) is a hot-rolled steel strip coils for the tube, often warm spiral shape, double-sided automatic submerged arc welding or welding into the legal system for water, gas, air and steam low pressure liquid delivery SAW pipe. www.bengguan168.com www.pvdfgc.com PVDF pipe pump tube www. naimoguanjian.com pump tube www.thgangguan.com of spiral steel pipe www.hbthgg.com spiral steel pipe