steel tube

    Spiral steel pipe is mainly used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, and urban construction. It is one of the twenty key products developed.     For liquid transportation: water supply and drainage.     For gas transportation: coal gas, steam, liquefied petroleum gas.     For structural use: for piling pipes and bridges; for docks, roads, and building structures.     Main technical characteristics of spiral steel pipe:     1. During the forming process, the steel plate deforms uniformly, the residual stress is small, and the surface is not scratched. The processed spiral steel pipe has more flexibility in the range of diameter and wall thickness. Especially in the production of small and medium-diameter thick-walled pipes, it has advantages that are unmatched by other processes, and can meet the user's more requirements on spiral steel pipe spe...