Multi-tier Mezzanine is composed of columns, beams, decking panels, floor beams, floor panels, handrails, stairs, etc. It is to build an intermediate attic on the existing workplace or racks to increase storage space, and can be flexibly designed as two floors, three floors. It is recommended when to store a large number of small parts but existing storage space is insufficient. The goods are usually sent to the second and third floors by forklifts, lifts or elevators, and then transported to designated locations by trolleys or hydraulic pallet trucks. Mezzanine Racking is widely used in the fields of automobiles, electronics, light industry and mechanics, etc.