I am a veteran; to be honest, your major is not easy to develop in Qinghai (not to discourage you); the counterpart of your major is the Qinghai Machine Tool Factory; this unit is quite good in the industry. Now that it's famous, you can try it. Others, like the tractor factory in the past, have almost been dismantled, reorganized, or contracted. They are considered private, and employees are exploited and squeezed very hard. The wages are also very low, so it's hard to go there. Nothing interesting anymore. There are also many private small businesses, but the wages are low, the working hours are long, and there are no benefits; maybe there are, but I haven’t found them. There is nothing about the Mechanical Design Institute in Qinghai; the better one is Xi'an Aerospace Design Institute, which is suitable for your major; I suggest you take the exam; the teachers at Qinghai Institute of Technology should be good, every spring and summer When the exam starts, it will be considered a public institution. I wish you good luck.