Different application scenarios are suitable for different recycling packaging. Cardboard box applications, although parts overlap with the enclosure box, in some industries, cardboard box has more advantages: in the medical industry, health needs are very high, and cardboard box neat, firm, and as a whole, easy to warehouse and management. We need to load large metal castings, we need to use a high-load-bearing cardboard box as a bearing unit. Or small parts, need to be placed in the box in an unorganized manner, the need for boxes can withstand the internal expansion of the box. Like these high requirements of the use of the scene, only the cardboard box can be competent.