219 spiral 219 spiral steel pipe spiral pipe a minimum caliber of 219 professional production and operation of spiral steel pipe, spiral welded steel pipe, spiral wound steel pipe, the double-sided submerged arc welded pipe, double-sided submerged arc welding spiral steel pipe, submerged arc welded pipe, spiral welded pipe, SSAW steel pipe Hebei spiral steel pipe Cangzhou spiral steel pipe, days benefits spiral steel pipe, spiral pipe Hebei, Cangzhou spiral pipe, day benefits spiral, spiral pipes, seamless steel tubes, seamless pipe, straight seam steel pipe, straight seam welded pipe, ERW straight seam steel pipe, hot-rolled steel pipe, hot expanded steel pipe, welded steel, galvanized steel pipe, galvanized pipe, penstock, power station penstock, anti-corrosion steel pipe, pipe insulation, oil and gas 2PE/3PE polyethylene coating, FBE dissolved ring oxygen powder Pipe Coating, coal tar epoxy coating, steel cement mortar lining anti-corrosion, black and yellow jackets, pipe insulation, oil pipe, gas pipe, piling steel pipes, pillars of steel pipe, dredge pipe, lost clay pipe, flange, elbow, bend, tee, first-class fittings. The products are widely used in natural gas, petroleum, chemicals, electricity, heating, drainage, steam heating, hydropower pressure steel pipe, thermal power, water and other long-distance pipelines and piling, bridges, steel structures and other engineering fields. 
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 Specializing in the production of spiral steel pipe and pipe anti-corrosion insulation, has a diameter of 219 - diameter of 2500 production line 3, the wall thickness of 6-25, the steel plate material choice, do 3PE anti-corrosion, polyurethane insulation, rust, 8710 drinking water, paint coatings and other projects . In addition the company also operates a seamless steel pipe, ERW oil casing pipe. Longitudinal specifications 4 points, 6 points, 1 inch, 1.2 inch, 1.5-inch, 2 inch, 2.5-inch, 3 inch, 4 inch, 5 inch, 6 inch, 8 inch, 102,108,127,133, 139,159,168,177,194,219,273,325 and other specifications, wall thickness of 1-12 thick Longitudinal, hot-rolled seamless steel pipe, the product execution: SY/T5037.GB/T9711,, GB, / T8162-1999, GB/T8163-1999 standard, widely used in oil and gas industry, chemical industry, the transmission fluid pipelines, bridges, piling, infrastructure projects and steel structure. Special specifications, special wall thickness steel pipe and pipe fittings customized according to user needs. To enhance product quality control, the purchase of automatic ultrasonic, X-ray industrial TV, X-ray real time imaging, and 1000 tons of computer automatically hydrostatic pressure testing machine, 60 tons universal testing machine, Charpy impact test machine and other important testing equipment, production equipment, the introduction of the United States Lincoln automatic welding, Germany, MEG and Mannesmann row roller device www.bengguan168.com pump tube 
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