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METHOD OF PREPARING AND DELIVERING A MIXTURE FOR CONSOLIDATING FALL OR FILLING MATERIAL RUBBLE IN UNDERGROUND EXCAVATIONS OF MINESJ OBRUSHAJUHHIESJA NANOSY ILI ZAKLADKU V SHAKHTAKH
METHOD OF PREPARING AND DELIVERING A MIXTURE FOR CONSOLIDATING FALL OR FILLING MATERIAL RUBBLE IN UNDERGROUND EXCAVATIONS OF MINESJ OBRUSHAJUHHIESJA NANOSY ILI ZAKLADKU V SHAKHTAKH