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causes of poor output on coal ball mill italy

2009-9-12The output of the peat industry in 1932-33 according to the five-year plan was to amount to 122000000 rubles. Actually in 1919-30 already its output amounts to over 115000000 rubles i.e. 96 per cent of the output fixed in the five-year plan for 1932-33.

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