Advantages of multi-level mezzanine rack steel warehouse storage shelves rack: 1, Improved warehouse storage rate: 200%;multi-level mezzanine rack steel warehouse storage rack 2, Saved the human cost: 33%; 3, Improved work efficiency: 20%; 4, Utility rate of space: 90%; 5, Various usage: warehouse, office, production & service; 6, Easy to relocate or expand; 7, Convenient for the warehouse management.