Nongfu Spring is generally used on domestic planes, and local brands are generally used abroad. Sometimes, when flying to two countries, there will be water from these two countries.

JAL, for example, provides Japanese brand mineral water. When flying to China, sometimes it will be required to carry it in China when the water runs out, and most of the water replenished is Evian in Shanghai.

Evian water for air France.

the water in first class and economy class is the same, and the difference between drinks lies in the variety of wine. There are many kinds of red wine and wine before and after meals in first class. Economy class generally has no choice.