5 ply corrugated cardboard production line is the professional equipment for producing corrugated cardboard. This 3ply, 5ply, 7ply, and multi-function corrugated cardboard production line consist of the following equipment: • mill roll stand, surface paper pre-heater, single facer, conveying bridge, duplex gluer, double facer, slitter scorer, Nc cut-off, conveyer and stacker. • Heating system, air compression system and glue making system, etc. The 3ply, 5ply, 7ply corrugated cardboard production line has high middle and low grades with different-specification and different-quality equipment designed as per customer specific requirement. Our company has developed and designed these production lines with the speed 80-220min, the paper width 1300-2000mm and 4 flute types uv shape a, b, c, e for the customers to choose.