The purpose of the training tray is to hold a bottle of drink, a bottle of beer and a bottle of white wine at the same time, walk naturally and generously, and pour wine on the tray. Pallets are vehicles, cargo platforms and movable platforms or movable floors used to transform static goods into dynamic goods. Even goods that lose elasticity on the ground.

Once the pallet is loaded, it immediately gains mobility and becomes flexible and mobile goods, because the goods loaded on the pallet are ready to move at any time. This dynamic loading and unloading method based on pallet is called pallet operation.

Flat pallet is almost synonymous with pallet. As long as the pallet is mentioned, it generally refers to the flat pallet, because it has the widest range of use, the most times of use and the best versatility.

According to their materials, uses, platforms, forks and structures, there are various types of pallets. Especially in some occasions that need rapid operation, because of its high efficiency, safety and stability, various countries have developed various special pallets, such as flat glass container pallets, tire pallets, long-sized pallets, oil drum pallets and so on.