It is made of at least one layer of corrugated paper and one layer of cardboard (also called cardboard) glued together. Mainly used in the manufacture of cardboard boxes, boxes and other packaging materials fragile goods. It is made of ground straw pulp and waste paper through beating, and then rolled into corrugated shape by mechanical processing.

Corrugated corrugated corrugated corrugated like a series of connected arch door, side by side into a row, mutual support to form a triangle structure, with better mechanical strength, from the plane can also withstand a certain pressure, and flexible, good buffer; It can be made into various shapes and sizes of gaskets or containers according to needs, which is easier and faster than plastic cushion material. It is less affected by temperature, good shading, and does not deteriorate under sunlight. Generally, it is less affected by humidity, but it is not suitable for long-term use in an environment with high humidity, which will affect its intensity.