expressway guard rail roll forming machine,highway guard rail roll forming machine,protection barrier roll forming machine, safety barrier roll forming machine This guard rail roll forming machine is comprised of mechanic decoiler, guiding and feeding equipment, leveling device, pre-punching hydraulic device, roll forming unit, post hydraulic mould cutting device, hydraulic station, PLC control system and unloading rack. We can supply the machine producing two-wave guardrail and three-wave guardrail. We can also supply rail post (like M profile or U profile) roll forming machine..