Modular structure, story can be adjustable. With various types of forklifts and pallets, trucks direct access to the shelf area of each column inventories and Operations, to take advantage of warehouse space. Main features: 1. the support rail, storage tray according to the depth direction, one followed by one, which makes high-density storage possible. 2. cargo access from the shelves and out of the same side, after the first deposit check and balance weight and reach trucks can easily access of goods into the middle shelf, without taking a number of channels. 3. This shelf for storing large quantities and less variety of goods. 4. Direct plug-in shelves full assembly structure, column structure film was fabricated, the total depth of the shelf against the wall region can be designed for the maximum depth of less than 7 pallets, in the middle region could total depth on both sides of the shelves and out usually in the 9 tray Depth of less than, in order to improve the efficiency and reliability of the forklift access. 5. widely used in various warehouses and logistics centers such as: food, tobacco, dairy and beverage industries, cold storage is also more prevalent.