Stationary Shelving Material Spec: Premium SUS304 stainless steel; 1.2mm upright/mounting plates, 0.8mm shelves, 40×40×1.0mm square tube uprights. Plate Structure: Double-layer fully enclosed design, 40mm thick aluminum honeycomb core boards, fixed welding with 4 standard boards. Fine Processing: Adopt laser cutting, stamping, bending, argon arc welding and surface finishing for smooth texture. https://www.ukenlab.com/stainless-steel-furniture/stationary-shelving