Heavy-duty shelves, also known as beam-shelf, or digital goods on the shelves, pallet racking class belong, the most common form of a shelf storage shelves in the country's various systems. + Beam to column in the form of tablets whole assembly structure, the structure of simple and effective. According to the characteristics of the storage unit ULD installation such as: kicker, steel laminates (wood laminates), metal mesh layer, storage cage rails, frame drums and other functional accessories. To meet the different units ULD form of storage of goods.