DOWNLOADS TitleSizeDownload Documents EN Documents EN TitleSizeDate modifiedDownload Brunnenweg 7 31061 Alfeld (Leine) Tel. +49 5181 855 90 - 0 Fax. +49 5181 855 90 - 29 Opening hours: Mon - Thu 08:00 - 16:30 Fri 08:00 - 13:30 PRODUCTS & SERVICES Products Services Downloads QUESTIONS? Contact GTC Privacy Legal notice FOLLOW US FollowFollowFollow CONTACT US