Cranes, Industrial Plant Case study: Wolff cranes bridge German highway gap Two Wolff 6031.12 flattop trolley jib cranes are being used to erect eight of the 10 pylons being built for a bridge to close the gap in the national highway Bundesstraße 50 in Germany’s Mosul Valley.Read More November 11, 2014, 10:02 amApril 6, 2023