... 1.Corrugated board production line,integrating such process as paper-feeding,medium-fluting,glue applying,forming,drying,scoring,cutting ... 3.It mainly includes mill roll stand,single facer,conveyor bridge,glue machine,doublefacer,preheaters,preconditions,slitter scorer ... for 5Ply/7Ply corrugated carton paperboard production: Automatic High-speed 5Ply/7Ply Corrugated Carton Sheet Production Line Machine