Circulation processing is to improve the logistics speed and the utilization rate of items. After the items enter the circulation field, the processing activities are carried out according to the requirements of the customers. That is, in the process of the flow of items from producers to consumers, In order to promote sales, maintain product quality and improve logistics efficiency, items are processed to a certain extent. Circulation processing realizes the role of "bridge and link" by changing or improving the form of circulation objects, so circulation processing is a special form of circulation. As the economy grows, national income increases, and consumer demands diversify, prompting the development of circulation processing in the circulation field. Currently, a large number of distribution and processing businesses exist in logistics centers or warehouse operations in many countries and regions around the world, and it is more common in developed logistics countries such as Japan and the United States. 1. Improve the utilization rate of raw materials. Centralize cutting through circulation processing, and cut products with simple specifications shipped directly from manufacturers according to user requirements. For example, steel plates are sheared and cut; wood is processed into plates and squares of various lengths and sizes. Centralized blanking can make the best use of high-quality materials, use small materials in large applications, and rationally tailor them, which can significantly improve the utilization rate of raw materials and have good technical and economic effects. 2. Convenient for users. Users who use small amounts or meet temporary needs do not have the ability to perform high-efficiency primary processing. Through circulation processing, users can save the investment, equipment, and manpower for primary processing, which is convenient for users. At present, the primary processing that is developing rapidly includes: processing cement into raw concrete, processing logs or boards and square materials into doors and windows, steel plate pretreatment, shaping and other processing. 3. Improve processing efficiency and equipment utilization. In the case of decentralized processing, due to the limitations of the production cycle and production rhythm of the processing equipment, the equipment is used loosely and sometimes tightly, making the processing process unbalanced and the processing capacity of the equipment cannot be fully utilized. Circulation processing is open to the whole society, with large processing quantities, wide processing scope, and many processing tasks. In this way, by establishing centralized processing points and using some specialized machines and equipment with high efficiency, advanced technology and large processing capacity, on the one hand, the processing efficiency and processing quality can be improved, and on the other hand, the equipment utilization rate can be improved.