Responsible for the contents of these pages:

Wilhelm-Mast-Straße 15
38304 Wolfenbüttel

Phone: +49 5331 9552-500
Fax: +49 5331 9552-552


Managing Director:
Dipl.-Ing. Walter Haarmann
Dr. Monika Haarmann
Ulrich Bosse

Trade register:
Amtsgericht Braunschweig HRB-Nr. 7103

Value added tax identification no.:
DE 291 988 670

We assume no liability for the contents of external links provided on our homepage. The owner of these websites are exclusively responsible for their contents.

Photo Credit: Photos from are used for this website

This website uses Google Analytics, a web analytics service provided by Google, Inc. (“Google”). Google Analytics uses “cookies”, which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website (including your IP address) will be transmitted to and stored by Google on servers in the United States. Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity for website operators and providing other services relating to website activity and internet usage. Google may also transfer this information to third parties where required to do so by law, or where such third parties process the information on Google’s behalf. Google will not associate your IP address with any other data held by Google. You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website. By using this website, you consent to the processing of data about you by Google in the manner and for the purposes set out above.