guard rail forming machine 1.feed width:480mm 2.forming thickness(2. ... High-speed Guardrail Cold Roll Forming Machines/Expressway Guard Rail Forming MachineHighway guard rail roll forming machine 1) Full automatical ... s requirements Guardrail roll forming machine linecomprised of decoiler, levelling, punching system, coil feeding machine, guider, roll forming machine, cutting system, collecting ...