TNT International ExpressThe scope of receipt of air parcel express mainly includes two categories: documents and parcels. The documents mainly refer to commercial documents and various printed materials. Generally, the gross weight of the package should not exceed 32 kg (including 32 kg) or the outer package should not exceed 102 cm on one side, and the sum of the three sides should not exceed 175 cm. As competition in the air transportation industry becomes more intense, express companies tend to relax their requirements on package size in order to attract more customers. The traditional air cargo business is mainly trade goods, and the volume of each piece of goods shall not be less than 5*10*20 cm. The postal business uses personal letters as its main business object, and requires that each package does not exceed 20 kilograms in weight and 1 meter in length.