1.steel corrugated roof sheet production line 2.CE CERTIFICATE 3.High speed 4.ISO 9001 ... machine, hydraulic cutting, product stand, hydraulicsystem, electric system.3. Technical Parameters 1) automatic inner tight decoilerA. Coil inner diameter: 450mm-700mmB ... Cr12 with quenched treatment60-62º CB. Cutting system: Adopt advanced hydraulic drive, automatic cut after forming,no distortion, no waste, ...