Long span shelving rack has good appearance and scientific structure. It isconsisted of vertical columns, wide hanging, layer plates, safety pins, limiting nals and plastic footing. The strueture is inserting conneted by slice and beam. It's safe and convenient to access. The beam can be adjusted by 50mm dlistance for large carriage and long unit rack Load capablity of each one is 100-800 kg. It is widely used in stores, supermarkets, company storages, public institutions.