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METHOD OF MAINTAINING OF ISOTHERM OF SOLIDIFICATION OF COPPER IN WORKING LAYER OF HEARTH OF POOL FURNACE FOR DIRECT PRODUCTION OF COPPER FROM ORE CONCENTRATES AND/OR ORES AND STRUCTURE OF FURNACE THEREFOR
METHOD OF MAINTAINING OF ISOTHERM OF SOLIDIFICATION OF COPPER IN WORKING LAYER OF HEARTH OF POOL FURNACE FOR DIRECT PRODUCTION OF COPPER FROM ORE CONCENTRATES AND/OR ORES AND STRUCTURE OF FURNACE THEREFOR
