Spiral steel pipe

　　With Spiral steel pipe manufacturing building structure grid, pillars and mechanical support, can reduce the weight, save 20 to 40% of metal, and can be mechanized factory. (Hebei Shengtian Group processing plant due to the use of Spiral steel pipenetwork structure, the actual savings of steel up to39%), the use of Spiral steel pipe manufacturing road bridge can not only save steel, simplify the construction, and can greatly reduce the protective layer area, saving investment and Maintenance costs. Therefore, any other type of steel can not completely replace the steel pipe, but the Spiral steel pipecan replace some of the profiles and bar.