The original name of graphite was Qiang. It was not until the Han Dynasty that it was called Mo. Early graphite rulers were mainly made from a pit and had many shapes. For example, there are rectangles, circles, and triangles, and their shapes are all irregular.

Stone mill is a great invention used by the working people in ancient my country for grain processing. ?It is a machine that can process rice, wheat, beans and other grains into powder and pulp. In modern times, people can use it to grind the pulp into soybean milk. After soaking the soybeans, they put it in a stone mill and grind it while adding water to turn it into soybean milk. Graphite is also very beneficial to our lives. It is convenient for us and allows us to save some effort to make things into powder. It also allows us to eat very authentic original taste, and it is made by ourselves. Yes, when we enjoy the food it makes, we will feel more sweet and delicious.

And it is said that the stone mill was invented by Lu Ban. Because at that time, people who wanted to eat flour and wheat flour had to put it in a thing and mash it with a rough stone stick. This method was very laborious, so he developed this thing to help People solved some problems. Moreover, in the past, people or donkeys were usually used to grind the mill, and its output was very low. Until modern flour processing plants were built later, stone mills were abandoned by the new era. Because of their low output, they are now Many people rarely use stone mills for grinding. But when I was young, most people still used stone mills to grind things like rice and beans. In our childhood, we often promoted it with adults, and it also brought us a lot of fun.

He also has great childhood memories for us. In the era when there were no modern processing plants, having a graphite machine was also very important. It helped us people do a lot of things. Of course, it was also a very historical thing, so we should not forget the stone mill. This thing. It helped us a lot and we should also remember this historical legacy.

The above only represents my personal opinion. Please forgive me if there are any errors.