3layer,5layer,7layer Corrugated Cardboard Production Line Purpose and Characteristics:Complete corrugated paperboard ... ,gluer machine, double facer machine, cut off machine, slitter scorer machine, stacker and glue making system.Our company to absorb ... , reel stand, cutter, double facer, preheater, bridge,slitter scorer.Corrugated CardBoard Production Line3-layer,5-layer,7-layer production line are ...