Coal Mining in Poland After World War Il

In the period from 1946 to 1964, the annual output of co al from Polish mines increased from 4 7.3 to 117.35 million tons. In this paper, the methods of bringing about this increase in productivity through the building of some twelve new collieries (producing some 15 million tons annually) and the modernization, reconstruction and extension of some thirty-six older collieries are discussed.
Keywords: Coal, coal, collieries, headframe, mines, Polish, Collieries, Headframes, Mine, Mines, mining, Poland, Structure
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