Corrugated paper is a board made of corrugated paper made of corrugated paper and corrugated paper formed by corrugated sticks. It is generally divided into two types: single corrugated cardboard and double corrugated cardboard. According to the size of corrugated: A, B, C Five types, E, F. The invention and application of corrugated paper has more than one hundred years of history. It has the advantages of low cost, light weight, easy processing, high strength, excellent printing adaptability, convenient storage and handling, etc. More than 80% of corrugated paper can be recycled and recycled. Corrugated paper It can be used as a packaging for food or digital products. It is relatively environmentally friendly and widely used.