Speaking of tung oil, it's actually quite a story, because Yi Xun saw the original appearance of this thing when he was a child, but it doesn't seem to have any effect, and the fruit can't be eaten, but the leaves are bigger and more fun, so some netizens have to ask, this thing is actually very useful in the war, and it is said that tung oil is a very important strategic material in the war, so why does Yulong want to give tung oil extra points in this respect? Let's take a look at this problem together!

Speaking of tung oil, we should talk about two monopoly products in China during World War II: tung oil and bristles. The bristles, that is, the bristles on the pig's back, are a lever to measure the quality of bristles, because the local pigs in China were free-range.

Tung oil was monopolized at that time. At that time, about 90% of tung oil in the world came from China, and China's tung oil was headed by Sichuan. Tung oil is widely used in military weapons such as warships, planes and submarines because of its acid resistance, quick drying and flammability.

At that time, due to the lack of diesel and gasoline in China and the blockade of the eastern coast, there was not much oil available. And we have just gone straight, and it is also urgent to refine with tung oil. Hitler used coal to refine oil, which had the same effect.

Moreover, because we were poor and weak at that time, we had nothing to sell, even if it was possible, we were not competitive, so selling tung oil abroad became a way. In addition, because we are rich in tung oil, we also exchanged the economic loan under the tung oil loan contract for US military assistance for the first time, breaking the neutrality of the United States.

Therefore, in World War II, tung oil was a strategic material of the United States and an important strategic material of our country.