Denver, Colorado, June 02, 2021 (GLOBE NEWSWIRE) -- Corrugated cardboard—sometimes called corrugated fiberboard—is material made of thick paper stock with a fluted (or grooved) middle layer ...

A quick note on terminology– cardboard is a single layer of thick paperboard; sandwich a sheet of wavy (corrugated) paper stock between two flatsheets and you get the strong and lightweight ...