Fluent article shelf, usually by the medium beam type shelf or heavy beams racking system evolution and become, shelf beams before and after each layer between Settings or roller type aluminum alloy sheet metal flow pattern, a certain slope (about 3 DHS), the multiple parallel slide, slide between distance is adjustable, can be set up between adjacent track space rod or a partition, the slide down to facilitate goods orientation. Goods usually in the form of paper or put the goods in plastic turnover box, using the weight of the flow of goods, easily implement first in first out, manual picking and selection, access to convenient, unit shelves each layer of the load is usually within 1000 kg, usually in the shelves effective height of 2.5 meters within. Suitable for assembly line on both sides of the order picking process transformation, distribution center and other places, can match with electronic tags realize information management of goods, widely used in tobacco, medicine, department stores, auto parts and other industries.