Spiral welded pipe due to low cost, excellent quality, production speed. In some special application direction began achieved initial progress, such as the air defense project, wind pipe, Steel drum， steel support, high-rise building pile foundation with pipe, bridge filter pipe, large diameter spiral tube from circle to square and so on, at present our equipment in these areas have achieved good application future, I will according to the equipment other special use bold reform, to make it more simple structure, easy transportation and installation, the way of the future we will continue to expand, for the development of corporate diversification further widen the road.