The traditional "Colloquium on Refractories" will finally take place again as a face-to-face event. On September 29 and 30, the experts will meet in Aachen, Germany to exchange views on refractory technology, magnesia products and general market developments. Lehmann&Voss&Co. will also be present with a team and can hardly wait to enter into personal dialogue with long-standing and new business partners. More details about the event at http://www.ecref.eu/.