Heavy-duty shelves are the most commonly used type of shelves. They are low-cost, safe and reliable, and easy to assemble and disassemble. They are suitable for manual storage and retrieval, and each layer has a standard effective load of more than 800kg. They are suitable for manual storage and retrieval of boxed goods, or for loading scattered heavy goods with parts boxes and turnover boxes. They are often used in the logistics industry, warehousing, etc.