Main Products: spiral pipe, spiral steel pipe, welded pipe manufacturer. Production management: Helix tubes, welded steel pipe, spiral submerged arc welded pipe, dredge pipe, steel pipe, seamless pipe, thermal expansion pipe, spiral steel pipe, spiral welded pipe, straight seam pipe, elbow flanges, spiral welded steel pipe, welding reel, T-pipe, pressure pipe, water pipe, straight seam steel pipes, hot-rolled steel, with steel billboards, 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 various materials. Product line with the United States Lincoln automatic two-sided submerged arc welding machine, perform oil and gas industry standards SY/T5037-2000, SY/5040-92, GB/T9711.1-97 production, the company based on quality, 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 detected. This product is widely used in water engineering, petrochemical industry, hydropower, power industry, agriculture, irrigation and urban construction and other fields. Used for liquid delivery: water supply, drainage; for gas transportation use: gas, steam, liquefied petroleum gas; for structural use: for piling pipes for pillars, piers, roads, structural pipe. http://www.thgangguan.com spiral steel tubing http://www.naimoguanjian.com