106 photos
Modernity Conference. Katowice. 30.09.2015
30 September 2015
Coal Industry. Kompania Weglowa. Press Conference. 24.09.2015
24 September 2015
Mining. International Mining Industry Exhibition. 08.09.2015
9 September 2015
Mining. International Mining, Energy and Metallurgy Fair. 09.09.2015
Modern Coal Mining Conference. Katowice. 30.09.2015
