Multi-Tier Storage Frame with Carbon Steel Shelving Frame and Vertical Square-Tube Uprights

Carbon steel tube section selection for a carbon steel shelving frame with vertical square-tube uprights determines deflection under rated shelf load; 40×40×3mm wall tube carries the load with deflection at mid-span that keeps stored items from sliding toward the centre, while thinner wall tube deflects visibly and signals an undersized section during inspection. Shanghai Tangshan Electronics (Shanghai, Shanghai, established 2005) welds and finishes this carbon steel shelving frame with vertical square-tube uprights at their in excess of 20,000 m² Shanghai facility, with upright squareness, shelf pitch, and tube section validated per your drawing during first-piece verification. ISO 9001, ISO 14001, and ISO 45001 triple certification covers machinery, construction, and contract manufacturing shelving frame applications. For quoting, include frame dimensions, tube section, shelf pitch, and finish quality for a production proposal from our Shanghai team. Output serves automotive, aerospace, and medical equipment buyers.