Stählerne Adern [1446022] Released: 1956-01-01 Revenue: $0 Budget: $0 Profit: $0 Runtime: 55 mins Popularity: 0.0429 Vote Average: 0 Vote Count: 0 Overview: A German Film Award winning documentary about the production of seamless steel tubes. Cast [2] Christian MarschallNarrator Klaus W. Krause Trailers