05.200 Mining of lignite0
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mininghard coalliquefaction methodswashingsortinggradingpulverizingcompactioncoalcoal bankslignitedryingpulverizationoreiron contentprocessingagglomerationiron oreuraniumthorium: uranium pitch oreproductionuranium concentratealuminiumcopperleadzincmanganesechromiumnickelcobaltmolybdenumtantalumvanadiumgoldsilver and platinumrough cuttingquarryinggranitesandstonemarblecrushingcrushed stoneshinglelimestonegypsumchalkmineslateextractionphosphatespotassium saltssulphurpyritemagnetitebarium sulphatecarbonateboratemagnesium sulphatesearth pigmentsfluorsparmineralsguano
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