Uploaded on 2016-12-03 by HeikeLob

Chicago’s buildings are made of several different materials as can be seen on this picture. Also the Trump Tower of Chicago which was finished in 2009 was constructed with steel imported from China which has been published in recent press articles. Also European companies are involved as for example the Austria based Doka Group which provides form technology and services to a new building complex currently in construction at Wells Street in Chicago (November 2016)