"Material Mild steel, in China we usually use Q235, which similar to grade 250(AUS), A283(USA). we can also use Q345 which similar to grade 350 (AUS), A210(USA). This gives you amazing value through greatly increased product life. Size It can range in size from 1.5cbm to 9cbm Thickness of plate used 3mm mild steel plate for sides and 4mm mild steel for floor. Thicker plates are available to your requirements Specifications 1) Customized RHS is used for top rails. 2) Forklift channel under floor sheet. 3) Drain holes in the floor. 4) The fabricated or flat pack is available. More Options 1) Casters 2) Steel lids 3) Galvanized. 4) Logo Painting We will paint each bin you order in your company colors, enhancing your company image with great looking bins. twice of primer + twice of top coat Primer : zinc-based epoxy (Grey) Top coat : Urethane (Any color) http://www.binsupplier.com "