The Duffel plant is one of the largest rolling plants in Europe, producing rolled products from aluminum and special alloys. It features state-of-the art technology thanks to a CALP (Continuous Annealing Line with Pre-Treatment) 140-inch (3.556 m) hot rolling mill. With its modern 50 MN indirect press, the plant manufactures high-quality hard-alloy and semi-hard alloy extrusions. Plant associates work closely with other Aleris divisions and with customers all over the world.