Start Dr. Stefanie Weidner, Foto: Janine Kyofsky, Backnang Dr. Stefanie Weidner, Foto: Janine Kyofsky, Backnang

Dr. Stefanie Weidner, Foto: Janine Kyofsky, Backnang

Dr. Stefanie Weidner, Foto: Janine Kyofsky, Backnang
Dr. Bernhard Hauke, Foto: Stefan Haehnel
© Heidelberg Materials / Christian Buck