Warehouse cage, also known as warehouse cage or butterfly cage, is a standard logistics container used to store goods. It is a mesh structure metal cage with a fixed storage capacity, clear storage at a glance, and convenient for storing goods. The advantages of inventory counting also improve the effective utilization of warehouse space. The storage cages can be stacked and folded for storage when not in use, saving warehouse space. Mainly used for storing heavy or large items and mechanized turnover and handling, especially suitable for use in industries such as automobiles, household appliances, machinery and hardware. It has been widely used in Europe, America, Japan, Taiwan and other regions