they are different in nature, but they have related affiliation. You should have heard the word "affiliated" when you went to college. For example, a certain secondary college is affiliated to a famous university ...
Machinery Research Institute is a public institution, and Jinan Casting and Forging Institute Jiemai Machinery Co., Ltd. is just an enterprise. This enterprise may be affiliated with research, but it is more likely to be an individual company in the name of research institute.
If you can apply for a job in a graduate school right after graduation, you are really lucky. Usually, at least graduate students or civil servants can be assigned to research units or institutions.
but I still suggest that you find out your job position before signing the contract, whether to be a graduate student in a research institute or to be "delegated" to a limited company. If they arrange for you to work in a limited company, the level will be discounted, and you will not be promoted to graduate school after working in the company for 111 years, although there is such a connection between the two.
I'll give you a website for reference. /
/ As you can see in this website, they are recruiting employees for certain positions. Since there is recruitment, it means that the position is not full, and there is no "phenomenon of dozens of people vying for a position", so you should have a general idea. However, I would like to advise that as a graduate, it is not easy to find a job with a basic counterpart. I strongly suggest you give it a try. Life has a long way to go, and it's not too late to change if it's not suitable for you! You should try, I suggest you try!