Large diameter thick-walled spiral pipe piling dedicated specialized in producing spiral pipe Spiral steel pipe Hebei Hebei Tian Hui spiral steel pipe manufacturers a lot of cash the company: the spiral welded pipe, spiral steel pipe, welded steel pipe manufacturer. Production: spiral welded steel pipe, spiral submerged arc welded pipe, dredge pipe, steel pipe, seamless tube, thermal expansion, spiral steel pipe, spiral welded pipe, straight seam pipe, elbow flanges, spiral welded steel pipe welding the pipe volume, T-shaped pipe, pressure pipe, water pipe, straight seam steel pipe, hot-rolled steel, billboards with steel pipes, municipal water supply pipe. The factory has five double-sided submerged arc spiral pipe production line, produce processing-diameter 219-3020mm, wall thickness 4-30mm spiral welded pipe of a variety of materials. U.S. Lincoln welder line of automatic two-sided submerged arc welding products, the implementation the standard SY/T5037-2000 of oil and gas industry, SY/5040-92 the, GB/T9711.1-97 production, the company based on quality, the full implementation of quality management . Passed the ISO9002 quality management system certification, and passed the ISO9001-2000 quality management system certification. And is equipped with X-ray, ultrasonic and hydrostatic pressure across the board automatically detect. This product is widely used in the field of water engineering, petrochemical industry, hydroelectric power industry, agriculture, irrigation and urban construction. The transport of liquids: water supply, drainage; gas transportation: gas, steam, liquefied petroleum gas; for structure: for piling pipe, as pillars, piers, roads, building structures tube. http://www.hbthgg.com Spiral Pipe factory http://www.thgangguan.com spiral steel pipe http://www.naimoguanjian.com pump tube