Today’s picture shows Manfred Weyer (left) and Lothar Seibel (right) laughing at the celebration on the occasion of the 25^th anniversary of Seibel und Weyer. But their moods weren’t always as good as then. Together they mastered many ups and downs. There have been many experiments referring to industries, markets and partners that have caused sleepless nights. Nevertheless, this revealed the strength of Seibel und Weyer so that their strengths continuously could be enhanced.