5 February 1998: German blast furnace linings maker Didier Werke announced Walther von Wietzlow management board chairman. He takes the place of Dietrich von Knoop, who retired at the end of 1997. Wie…
5 February 1998: German blast furnace linings maker Didier Werke announced Walther von Wietzlow management board chairman. He takes the place of Dietrich von Knoop, who retired at the end of 1997. Wietzlow has been in charge of sales on the Didier board since 1995.