This kind of rack is mainly composed of uprights, beams, and board. Assembing can be made without a single bolt. It is easy to assemble and disassemble(only with a rubber hammer). It presents a nice appearance and easy to store and pick up manually. The loading capacity is usually 200kg-300kg which can meet most of the requirements. The major components are sheet metal processed by cold plates, which can be adjusted vertically in pitch of 50mm. In order to facilitate operator access to goods, the total height of the shelf is usually no more than two meters,if you use ladder, shelves can reach a maximum height of 3 meters. It can be used alone,and also be free to splice into various arrangement.