... The 3ply, 5ply, 7ply, and multi-function corrugated cardboard production line mainly consist of the following equipments: Mill Roll Stand, ... Single Facer, Conveying Span Bridge, Multi-ply Pre-heater, Glue Application Machine, Double Facer, Slitter Scorer, Cut-off, Conveyer ... and Stacker, Glue Making System, and Electric Control System etc.Paper Outputting Speed ...