Plastic hollow plate is a new kind of material which is extruded by polypropylene (PP) or polyethylene (PE) as the main raw material. It has the characteristics of light weight, non-toxic, no pollution, waterproof, shockproof, anti-aging, corrosion resistance, rich color, and so on. At the same time, the plastic hollow board and its products can be recycled, cleaned and reused. As a new environmental protection material, it is an ideal replacement material for cardboard, wood and aluminum in many fields.