PP, PE hollow board (also called hollow grid board, Wantong board, corrugated board, double wall board), is a light weight (hollow structure), non-toxic, non-polluting, waterproof, shockproof, anti-aging, corrosion resistance, New materials with rich colors. Compared with cardboard structure products, hollow boards have the advantages of moisture resistance and corrosion resistance. PP grid board application: PP hollow grid board has light weight, high strength, moisture resistance, good environmental protection performance and secondary processing performance, and can be processed into turnover boxes, packaging boxes, etc.