... touchable screen.3. COMPOSITION: It is composed of decoiler, material guider, leveler, 2-station hydraulic puncher, hydraulic cutter, quick-changed-roller ... control.5. ROLLFORMING PRODUCTION PROCESS: Steel Material Coil -- Decoiler -- Manual Guider -- Leveler -- Hydraulic Cutter -- Rollformer -- Straightener -- Finished C / Z Purlin Profile ...