According to the type, size and size of the pallet racking system price, as well as the single pallet load and stack height (the weight of the single pallet cargo is generally less than 2000kg), and then determine the span, depth and layer spacing of the unit shelf, according to the relatively low effective height of the warehouse and The height of the forklift is relatively large to determine the height of the shelf. Most of the cargo handling equipment uses forward-moving battery forklifts, counterweight battery forklifts, and three-way forklifts for access operations. When the shelves are short, electric stackers can be used, and ultra-high warehouses can be accessed by stackers. The shelf system from industrial racking manufacturerhas high space utilization, flexible access, and is supported by computer management or control, which can basically meet the requirements of modern logistics systems. Widely used in manufacturing, third-party logistics and distribution centers, etc., it is suitable for a variety of small-volume items, but also for a small variety of large-volume items. Such shelves are used in high-end warehouses and ultra-high warehouses (most of the shelves in automated warehouses use such shelves). The pallet rack has high utilization rate and flexible access, supplemented by computer management or control. The state tray rack can basically meet the requirements of modern logistics system.