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Attic type rack using multilayer shelf rack structure, improve warehouse space utilization rate, suitable for the storage of artificial selection in small batch, more varieties of goods.

Bottom rack mezzanine storage of materials is not only the place, and the support of the superstructure load-bearing beam (column), floors can be designed as multi-layer (usually 2-3 layers), with stairs, handrails and goods elevator. The mezzanine is suitable for storerooms, artificial access, large storage volume, but also for the technological transformation of the existing old warehouse, the warehouse space can increase rate of body. The load-bearing beams span the bottom, if narrow, then the construction cost can be greatly reduced.