5 ply corrugated cardboard production line Corrugated cardboard production line is the professional equipment for producing corrugated cardboard, the roll base paper is pressing corrugated , gluing ,drying, cooling and finalize the design, slitting and creasing, cross cut to the specifications of cardboard, at last through the process of stacking , producing the eligible cardboard. Realizing the high speed and efficiency line production. The high, middle grade 3 ply , 5ply , 7 ply corrugated cardboard production line can be selected according to the requirements of the customers, the width is from 1400mm to 2500mm, the production speed is from 80 m/min to 250 m/min.