... curve roll forming machines, roll forming machines for roof panels and walls, C and Z shaped purling forming machines, steel tile forming machines, guard roll forming machines, down pipe forming machines 1 ... Material of rollers: GCr15, 9CrSi, quenched1.12 Material of rib roller: GCr15, 40Cr, quenched1.13 Shape of rib: slash rib1.14Dimension ...