As for graduate students, the average salary is 4000+, the wage gap between graduate students is even greater, and there are more good units. In addition to the above enterprises, there are also major research institutes and research institutes. But what you need to know is that the employment of graduate students has shrunk, not as wide as that of undergraduate students.
Finally, as for work experience, it seems that it has no effect on salary. Graduates are paid according to the treatment of fresh graduates, and having work experience can only be an advantage in finding a job. I'm just talking about the treatment when I first joined the work. As for the future development, it depends on the opportunity and my own ability.