... .It mainly includes mill roll stand,single facer,conveyor bridge,glue machine,doublefacer,preheaters,preconditions,slitter scorer,cut-off stacker,steam heating ... system,glue preparing and supplying system.Appliable for 5Ply/7Ply corrugated carton paperboard production: Automatic Corrugated Board Making Machine 5Ply/7Ply