... a good efficiency, heavy items can be stored.The main features of heavy-duty racking:1. Usually the goods ... unit span is generally less than 4m, depth 1.5m or less, low, high storage racking height ... the multiple of 75mm on each storey. Layer 1 ton to 5 ton truck design, the ... of space area, providing storage capacity.Heavy Duty Racking Structure:heavy duty steel plate racking by the columns, beams, ...