Composed of upright post, cantilever beam and bracing. It is ideal for storing long, unwieldy items, such as profiles, tubes, plates and so on.This is achieved by eliminating obstructions in the front of the rack and providing a clear opening in the front of the rack in lengths as long as desired. Can also be decked for storage of items smaller than the spacing between towers. It is widely used in mechanical manufacture and architecture material supermarket enterprises.