Corrugated is easy to recognize. Corrugated is made of paper and has an arched layer, called "fluting," between smooth sheets, called "liner." This arched layer provides corrugated with a very high strength-to-weight ratio.
The corrugated most commonly used to make boxes has one layer of fluting between two smooth sheets. But there are many types of corrugated available, each with different flute sizes and thicknesses.
Corrugated is an extremely durable, versatile, economical and lightweight material used for custom-manufactured shipping containers, packaging and point-of-purchase displays, in addition to numerous non-traditional applications ranging from pallets to children's toys to furniture.
The corrugated is made from the corrugated production line .and the made from the single facer.and at last ,at also need others carton machines .they are form to the corrugated carton box.