How does Chengdu Kobelco Engineering Machinery (Group) Co., Ltd. treat junior college students, including room for development and promotion?

The salary is more than 2,500 (after tax), which will increase with the increase of service length, but it will not be too high. Is there room for promotion? Unless you are exceptionally good, you are just an ordinary person. Among mechanical college students, numerical control is slightly better, but it is tiring and the salary is relatively high, and it works in three shifts. Others are also tired, but the salary is not high. They smell of engine oil and iron filings every day, and they are not clean every day. The alliance is a robot. I am tired. I have changed my career.