The warehouse utilization rate of the drive in (corridor) rack is high. The forklift drives into the goods Lane in the depth direction of the rack for operation. The drive in rack is closed at one end, and the other end enters and exits the goods. The corridor rack is accessible at both ends. The goods are accessed from the same side of the shelf, "first store, then take, then take". The corridor type shelf is suitable for the storage of goods with less varieties and large quantity of goods in and out of the warehouse. It is often used to store large quantities of the same type of goods. Because of its high storage density and high utilization rate of ground space, it is widely used in food and beverage, cold storage, dairy products, tobacco and other industries.