Nowadays, if you walk in the countryside, you will find that many plants you used to see when you were a child are out of sight. The times are developing and the countryside is progressing. Tung oil is rarely seen in rural areas now, because its value is not so high and its use is relatively simple. Although tung oil can be extracted from tung oil, compared with other trees, the income is not so high.

In the past, the people in rural areas used to pick the fruit and then use it to extract oil, and this oil would be industrial oil and could not be eaten. Rural people now prefer to plant some fruit trees or other plants that can extract oil, such as peanuts, sesame seeds and rapeseed. Oil can be used for cooking when it is extracted, so the use of tung oil is too single. Moreover, the people who stay in the countryside today are basically old people or women, and their strength is limited. They usually only grow some food or crops. Compared with other fruit trees, the income of tung oil tree is actually not high. Farmers also have to earn money, and they can only see it in their eyes. Moreover, planting tung trees requires technology, and not everyone can plant them.

The oil squeezed out after the fruit of tung tree ripens is called copper oil. The oil yield of this copper oil is about 35%, and it can reach about 70% if it is high. There are some harmful substances in tung oil seeds that can't be eaten, but the oil extracted is very good. This oil dries faster, weighs less, and is shiny, heat and cold resistant, moisture-proof and corrosion-resistant. Tung oil has many uses, for example, in the field of medicine, it can be made into insecticide or emetic. Tung wood is also light and soft, and can be used to make furniture.

Tung tree has a tall tree shape, rich flowers and beautiful fruits, and can also be used as a green tree to watch. Tung oil tree is a very important oil-extracting tree species in China, which was once a very important industrial raw material.