In order to increase the storage space, can do two, three layers of attic, appropriate to access some light bubble and small and medium-sized goods, suitable for many varieties of large quantities or many varieties of small batch goods, manual access goods.  The goods are usually sent to the second or third floor by forklift, hydraulic lift platform or cargo elevator, and then sent to a certain location by light car or hydraulic pallet car.  In recent years, cold rolled steel slab is used more, which has the advantages of strong bearing capacity, good integrity, good bearing uniformity, high precision, smooth surface, easy to lock and so on.  

Multi-tier Shelves system is widely used in automobile parts field, automobile 4S shop, light industry, electronics and other industries.