Highway guardrail roll forming makina amagwiritsidwa ntchito makamaka popanga msewu waukulu wa guardrail.Makinawa amagwiritsidwa ntchito pokhomerera, kupanga ndi kudula mbale yamalata ya highway guardrail, yomwe imagwiritsidwa ntchito kwambiri pomanga mlatho, misewu yayikulu.