Drive-in racks are also known as corridor racks or through racks. The pass-through rack can be used for forklifts to enter the aisle to store goods. It is suitable for large horizontal size, less variety and more quantity. It is often used to store a large number of the same type of goods. The goods can be deposited and withdrawn from the same side, or can be deposited and withdrawn from one side to the other side. Compared with beam-type racks, the drive-in racks (through-type racks) are densely arranged, and the space utilization rate is extremely high, which can improve the utilization rate of storage space by more than 60-80%, and the investment cost is relatively low. Due to its high storage density and high utilization of ground space, Such as beverages, dairy products, tobacco, low-temperature refrigerated storage, standard home appliances, chemicals, clothing and other industries.