Get in Contact...

The best way to contact me is to send me an email to:


You can also send me a letter to:

                    Dr.-Ing. R. Hahn
                    Welle 3
                    71083 Herrenberg

Or if you have more detailed questions you can also call me personally.
Best time to reach me is in the evening from 19:00 (GMT) or on the weekend.

                  ++49 (07032) 915 99 29

I will be pleased to help you with any of your questions.