... unit oriented wheel(can right and left adjust)l into feeding roller, dia is 180mm,material 45# steel, quenched 48 ... °-52°, chromed leveling is three roller above and four roller below, quenched and chromedGuard rail forming line Main ... material: tempered Cr12 ironComponents:Hydraulic passive Uncoiled, Forming Machine ( feeding, leveler, roll mill, cutting, punching, PLC computer, Hydraulic ...