... line is compose of shaftless mill roll stand, fingerless type single facer( vacuum suction type), preheater, double bridge,gluer machine, ... structure and nice appearance.Specifications:Corrugated CardBoard Production Line include single facer, reel stand, cutter, double facer, preheater, bridge,slitter ... grease and high temperature grease sale 3layer 5layer 7layer Corrugated Board Making Machine