Spiral pipe as an important part of steel pipe steel products

As an important part of steel pipe steel products, spiral pipe plays an important role in the development of national economy. The general trend of the development of the steel pipe industry in the world of spiral pipe manufacturers is: the growth rate of spiral pipe output is faster than the growth rate of seamless steel pipe; the output of spiral pipe is much larger than that of seamless steel pipe; the competition for seamless in various fields Market. Among the hot-dip galvanized pipes, ERW spiral welded pipes dominate the output, in the field of long-distance oil gas pipelines urban gas pipelines, they compete for straight-seam submerged arc welding pipes spiral submerged arc welded pipes.