As a small part, the nut can cause major hidden dangers. Similarly, the nut is also an important part of the high-speed rail. Japan once issued a nut that never loosens, which is widely sought after by the international community, and even exaggerated to say that Chinese high-speed rail cannot be separated from Japanese nuts.

If you ask about the deepest impression of China abroad, I believe half of the foreigners will think it is China's high-speed rail. Indeed, China's high-speed rail not only ranks first in the world with a total length of more than 40,000 kilometers, several streets ahead of Japan's second place, but also the construction cost is more than half cheaper than Japan's.

The Japanese say that "never loose" nuts are very popular all over the world. Some people say that China's high-speed rail is inseparable from Japan's nuts. I don't know, since the development of our country, the self-locking nuts have perfectly defeated the other party!

Recently, at the installation site of the tower crane at the Feili Lanting construction project site in Lanshan District, Linyi City, Shandong Province, a construction worker was operating with a red nut in his hand. I saw him rotate a few times at the end of the nut, and a smart early warning nut was installed. Like conventional nuts, this smart early warning nut comes with wire teeth, and it takes less than 5 seconds to manually install a nut, which is convenient and quick to install.