Structural characteristics: combination of beam-type plug-in shelf rack, ladder-type beams, steel plates can be configured or wood laminates, each 50 cm high layer of arbitrary adjustable shelves on each unit load up to 800 kg, Size can be tailored to customer needs, and in front of such a shelf in A, in B-shelf compared to a number of industries and strong, is more suitable for storage of metal components are widely used in manufacturing and other industries.