Chemical engineering major is the best. Tianjin Bohai Vocational and Technical College is the best vocational education in China, and it has the largest chemical engineering training base among similar colleges in China. Fine chemical engineering major is a national demonstration major, which is quite good. Industrial analysis and inspection, petrochemical production and other chemical-related majors are among the best in the country.

However, the mechatronics major you studied is one of the major categories of the school, with strong application and low employment rate. This major is also good.

It is more difficult to change majors. You can apply for changing departments after studying in the same department for one year, but whether you are approved depends on the school. It is even more difficult to switch from machinery to chemical industry. It is recommended not to change. First, it is not easy to change. Second, your major is not bad.

If you want to ask more questions, you can go to Tianjin Bohai Vocational and Technical College to post it. The school post bar is very good.