The main reason for studying in Germany is to specialize in the opposite field. There are graduate courses in official website. Look it up yourself.
Germany does not pay attention to university rankings. You can choose your favorite city. The cost of living in South Germany is generally more expensive, and German students are also biased towards South Germany. But the quality of education in North Germany is also very good.
Materials, from China to Telford, at least 4 items. 4. Individual schools have international courses in English, requiring IELTS score of 6.
Apply for an incentive manual. It's simple. Write down why you want to study in your school on a4 paper. After you finish reading, you will get a better job in your country, which shows that you love learning and have no tendency to immigrate.
Be fair, translate your grades and diplomas from China University into English, and go to the local public office to be fair. English translation is consistent with the original text.
Basically, there are so many procedures, and it is easy to get a visa when you get the admission notice.
good luck