This pipe line adopts our advanced direct square forming technology with generation II. It realizes that one set of roller can produce all pipe sizes，and roller position adjustment is controlled by motor, greatly saving production cost.
It adapt the multi-point bending way, avoid the axial force and side abrasion, reduce the forming step while ensure the quality,meanwhile it reduces the power wastage and roller abrasion.
This production line is customized for Hebei Jingye Group, which is the largest steel product company in Hebei Province. Zhongtai Group has built 4 professional welded pipe production lines for it.