Corrugated paper is made of corrugated paper and corrugated corrugated paper with corrugated form, which is generally divided into single corrugated board and double corrugated board. According to the size of corrugated paper, corrugated paper is divided into five types: A, B, C, E and F. The invention and application of corrugated paper has a history of one hundred years of history, has low cost, light quality, processing, good strength, printing adaptability and convenient storage handling, more than 80% of the corrugated paper can through recycling, corrugated paper can be used as a food or digital products packaging, relative environmental protection, which has been widely used.

Type A corrugated and B corrugated are generally used for transporting the outer packing box, beer box is generally made of B corrugated. E stare blankly used as a more beautiful requirements and contents into the appropriate weight sheet packing boxes, corrugated and G F corrugated collectively referred to as micro corrugated board, is a kind of extremely thin corrugated, used as a hamburger, cream paste cakes and other food disposable packaging container, or used as a micro electric products such as digital cameras, portable audio system and refrigerated goods packaging.