The Full- Auto steel building material  C/Z  shape and purlin Roll Forming Machine  is an automatic production line that is used to produce various types of c/z steel. It consists of a decompiler, a feeding table, a pre-punching and pre-cutting unit, a main forming unit, a post-cutting unit, a hydraulic station, and a PLC control system. The machine can be used to produce various sizes and shapes of purlins, such as c/z purlins, omega purlins, eps purlins, and other types of purlins. It is a highly efficient and cost-effective solution for the mass production of c/z steel purlins.