Buderus Deutschland, BBT Thermotechnik 

http://www.dagcom.com/wp-content/uploads/2011/04/elco1.jpg

http://web260.webbox442.server-home.org/wp-content/uploads/2012/06/logo_Geberit.png

http://www.brandsoftheworld.com/sites/default/files/styles/logo-thumbnail/public/0014/5295/brand.gif?itok=QnpFFUiC

http://seeklogo.com/images/H/Hansgrohe-logo-E2FFB9F3AE-seeklogo.com.gif