The rolling mill in Königswinter, Germany was built in 1957 by the Lemmerz Werke GmbH
producing wide flats for car wheels.
In 1997 Lemmerz merged with the U.S. based Hayes Wheels International company to form Hayes Lemmerz.
In 2010 the rolling mill was outsourced and proceeded under the new name “Warmwalzwerk Königswinter”.
Images here.