What's interesting about your industry?

I study business administration, and I have to take courses on economics and management every day. It's boring, but today I'm going to talk about interesting things about our professional practice. In the last semester of my sophomore year, the major of economic management needed to go out for an internship, but this internship was not to work in a big company, but to study in another campus. There are three campuses in our school. I am in the east campus and my internship is in the north campus. We need to practice for five days, but we only need to practice for four days because our major is just on the May Day holiday. The north campus is dominated by machinery, studying theory every morning and practicing in the afternoon. What impressed me the most was the hexagonal grinding iron, which was a rectangular iron block. We need to draw a hexagonal pattern on it ourselves and then saw it into a serrated hexagon. Several sawteeth were damaged and finally worn ... There is also a machine that can engrave cards with arbitrary patterns, which is very common for students in North School, but we have never seen it before, and it feels very novel. Besides, the teacher also showed us the robot and that. All of us feel that we have opened a new world. Although it was very difficult at noon every day during that time, it was still a novel experience on the whole, so it felt very interesting.