How to determine the air freight, the following explanation, you can have a standardized understanding

Domestic air cargo tariffs are divided into three categories, namely general cargo, grade goods, three designated goods freight. General cargo tariff code N. The CAAC unified provisions of the basis of each leg cargo freight base tariffs for general cargo freight, less than 45 kg and the amount of angular units. Grade goods tariff code is S. Urgent, biological products, precious plants and plant products, live animals, ashes, coffin, fresh perishable goods, valuables, firearms, ammunition, escort cargo special cargo of grade goods tariffs of 150% of the basic tariff closing.

The designated goods tariffs code is C. Bulk, seasonal, low unit value goods, airlines may apply for the establishment of designated goods tariffs. In addition, the domestic air cargo lowest shipping per ticket is 30 yuan, the code is M.