Shelf racks are a kind of storage racks widely used in factories, enterprises, shops and other places. According to the load capacity of each layer of unit racks, they can be divided into light, medium and heavy racks. They can be covered with wood laminates or steel laminates. , It is convenient to move, disassemble and assemble, and has low requirements on the place of use. The use of the ascending ladder can greatly increase the utilization rate of warehouse space.