PP hollow grid board is generally made of environmentally friendly, pollution-free, and recyclable thermoplastic polypropylene (PP), polyethylene (HDPE) resin, and various auxiliary materials. Hollow board, also known as Wantong board, is widely used and convenient to use. Hollow board box is a new type of packaging material, with strong flexibility in processing. Hollow board can be made into products of different shapes and sizes according to customer requirements, making it an ideal packaging material to replace paper products and calcium plastic boxes, Due to the environmental pollution caused by papermaking, the cost of cardboard boxes will continue to increase. With the booming development of e-commerce, the usage of packaging boxes is increasing. In the future, the logistics packaging industry will definitely develop in the direction of light, thin, short, and small. Hollow boards fully comply with this concept, so hollow boards have broad development prospects