Drive in racking is also called corridor type shelf or into the rack. Rack through the tray access mode, applies to fewer varieties, the type of cargo volume storage. Through shelves in addition to the channel space, due to the need to enter the shelves forklift internal access goods, often one-sided collect recommends no more than 7 storage depth. In order to improve the truck running speed, can choose according to the actual needs of the configuration guide rail, compared with the rack, shelf (into the rack) library space utilization rate can be increased by more than 30%, through shelves (into the rack) are widely used in cold storage and food, tobacco industry.