Ruhrgebiet, Nordrhein-Westfalen, Germany - Topic picture sewer network transmission, old, bricked sewer in need of rehabilitation.  Ruhrgebiet, Nordrh
RMT6CW1KRuhrgebiet, Nordrhein-Westfalen, Germany - Topic picture sewer network transmission, old, bricked sewer in need of rehabilitation. Ruhrgebiet, Nordrh