#blast_furnace__blastfurnace  a furnace for smelting of iron from iron oxide ores; combustion is intensified by a blast of air
  supertype:  furnace  an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
  part of:  steel_mill__steelmill__steelworks__steel_plant__steelplant__steel_factory__steelfactory  a factory where steel is made

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