5 ply corrugating plant. High speed bearing mounted corrugation machine with variable speed driveCorrugator roller made of Ni-Cr-Mo alloy steel with heat treatment for hardness HRC 55-62, surface with chrome plated.Adjustment of -upper corrugating roller, pressure roller, and glue roller, is controlled by pneumatic cylinderGap between glue applicator roller and doctor roller is controlled manually.Pre-heater for liner paper and Pre conditioner for fluted media paper.