What about the welfare of Shanghai Pudong Waigaoqiao FlexMPE? For process engineers, test engineers?

FlexMPE, you are wrong. It's Fuji Mai, but it's actually a subsidiary of Foxconn. The treatment depends on what degree you graduated from. There is a difference between undergraduate and junior college. Bachelor degree for more than 3 years, with work experience, usually an engineer, the position is division 3.

If you have no work experience or just graduated, you are a teacher 2. Junior college is generally 1 division, but with the work experience of other big companies, you can talk to recruiters and ask for the position of division 2 or division 3.