Spiral welded pipe

Customers see spiral spiral pipe planning technology is a program, plan, imagine the visual way to convey the activities of the process. Before the world through labor reform, invention of civilization, the invention of material wealth and spiritual wealth, and the most fundamental, the most important invention activity is creation. After the steel strip or the steel plate is used as the raw material to form through the spiral cold bending successively, uses the submerged arc welding and so on successively to weld into the steel pipe workshop plan.