The packing box is hollow plate deep processed by hollow plate, with the advantages of environmental protection, moisture-proof, waterproof, oil proof, shock proof, anti friction, and anti extrusion. It can be designed into packing box with different properties according to customers' requirements.Exquisite printing not only play a protective effect but also greatly improve the product the grade.At the same time,the packing box can be repeatedly used, transport folded, and save the cost of transportation.