By insulation

1. Anti static electricity, 6 times the 6 times of the surface resistance 10 to 9 times of 10

2, electrical conductivity, the surface resistance of 10 of the 6 times below

3. Insulation, the surface resistance is above the 12 times of 10.

According to the quality

1, wood: made of wood or bamboo material, usually used for decoration and decoration. 2, metal class: the general texture is stainless steel, more used for placing items, not often moving. 3, plastic: light, easy to use, with anti-skid function, should be used in the service industry. 4, wood: wood plastic composites made with a wide range of uses, saving energy and reducing pollution.

Classification standard

According to the material, use, table, forklift fork entry mode and structure, the tray has various types. Especially in some occasions that require fast operation, many pallets are developed by various countries because of the high efficiency and safety of pallets. Such as plate glass container tray, tires special tray, long size tray and special tray for oil barrel.

It is because of the variety of tray, has extensive application and play a decisive role in the joint, efficiency in handling, storage, transport and packaging and other logistics links, in the center position, has the function of cohesion is very important, so, the tray is a small appliance, but its size that is the core of packaging size, size, unit size of the car. Only the size of pallet is the standard, deciding the specification, size and serialization standard of packaging, truck carriages, railway carriages, container cases and so on, which can best reflect the rationality and efficiency of handling, storing, transporting and packing. In addition to this, the size of the tray is also related to the size of the assembly unit. Pallet size and relates to a packaging unit size, truck, railway freight cars, warehouse shelves and channel size, even to the logistics infrastructure, such as the standard size of the train station, port, dock and cargo handling space structure, loading and unloading equipment. Therefore, in a sense, the standardization of pallets is not only a prerequisite for pallet rental, pallet circulation and recycling, but also a decisive factor for mechanization and automation of handling, packaging, transportation and storage operations. Without the uniform size of pallets and sizes, there is no serialization standard of pallet based facilities, equipment, devices, tools and so on. Only partial logistics rationalization is achieved, and it is difficult to achieve the rationalization of overall logistics. Because of this, unified tray specifications to maximize the cost of logistics, will naturally become the common desire of the logistics industry.

In spite of this, but as the pallet standard affect different regions and groups of countries, economic interests, balance of interests in the tray on the issue, almost impossible in a short period of time, some of which have been in pallet specifications some regions and countries in the implementation has not been possible to compromise and concession. In this way, ISO unified global transportation pallet specifications are very difficult to finally only in the relevant regions and countries in the implementation of 1200 mm * l 000mm, 1 200mm, L * 800mm 219mm * l 016mm (48 inches by 40 inches), l 140 mm * l 140 mm, l 100 mm * 100 L mm and mm 1067 * l067mm 6 pallet specifications take attitude in ISO 6780 "all-embracing transport general purpose flat pallets principal dimensions and tolerances", the 6 kinds of specifications of the tray of parallel to become the world's common international standards.