OFZ Istebne, electric submerged-arc furnace

OFZ Istebne, electric submerged-arc furnace

Keywords: feroslitiny, ferroalloy, smelter, smelting plant, industrial photography, heavy industry, istebne, slovakia, oravsky podzamok, ofz istebne, industrialni fotografie, electric submerged furnace, slevarna, zlievaren, kovohuty

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