Line for the production of 3 and 2 wave guardrails. By inserting or disconnecting some rolls, the 3-wave or 2-wave guardrail can be realized. Particularly flexible line in length change and punching. Punching and cutting take place before profiling and the change of length takes place from control. After this , a motorized conveyor carries the piece to the roll forming and to unloading-stacking (optional).