Gravity shelves Pallet Rack relatively common terms need to operate the channel, so the 60% increase in space utilization; tray operation follows the FIFO principle; automatically stored rotation; storage and picking of two separate actions greatly increased output, due to the since gravity is sliding cargo, and no operating channel, so reducing the number of transport routes and forklifts. Each channel on the shelves are installed in a certain slope, with the track rail, storage unit goods under the action of gravity, flows out from the library storage terminal end. Such a warehouse, in between the rows and rows of not operating channel, greatly improving the utilization of warehouse space. However, when used, preferably the same row, the same level of goods, should be the same goods or a simultaneous inbound and outbound cargo. Height adjustable, with various models forklift or stacker, to achieve fast access to all kinds of pallets, the largest unit cells carrying cargo of up to 5000kg, is the most common storage industries.