See Also:Colored Mailers and White Mailers
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The corrugated box has two main parts: the linerboard and the medium. Both of these components are constructed from a heavy paper known as containerboard. The linerboard is the flat portion of the box which you can see that adheres to the medium. The medium is the wavy, fluted paper in between the liners. The combination of the parts mentioned above create the corrugated box.