There is no standardised internship in Germany. The tasks during the internship are just as varied as the companies are different. It varies according to the industry, company or project, which have been chosen for each particular intern. However, all interns may expect to be integrated into teams and to be given more and more independent assignments. This is the main difference between the internship in Germany and the usual internships in Ukraine..
You can read some reports provided by former interns here: Feedback from former scholars.
Nastya Iskovych and Natalia Popovchenko scholarship holders in 2017, reports about their experience at company Villeroy & Boch in Mettlach (Ukrainian).