From 1 to 4 December 2009, the KNAUF INTERFER group exhibited for the second time at the Blechexpo trade fair for sheet metal processing in Stuttgart. At stand 5500 in Hall 5, numerous customers, suppliers and interested parties took advantage of the opportunity to talk to representatives of the Walter Patz and Max Baum steel service centres, Giebel Kaltwalzwerk and Interfer Stahl Frankfurt/Main.