This is a used machine.
NATIONAL BENDING ROLLS (NBR1015) are principally used for rolling tubes/cylinders in sheel metal. The metal is pinched between two rolls and curves as it comes into contact with the third (back) forming roll. The NBR1015 has a 1015mm roll length, 50mm roll diameter and can accomodate mild steel up to 1.2mm thick. The rolls are bottom slip, with an Edwards style fabricated steel frame.
This machine is now sold.