Ключевые слова: alloy, barren, bor serbia, chimney, city, cliff, copper, copper bor, copper mine, country, deposits, eastern serbia, ecology, energy, environment, environmental, fabric, factory, furnace, gold, industrial, industry, ironworks, landscape, melting house, metallurgy, mine, minerals, nature, nonferrous metal, plant, pollution, power, production, rare metal, refinery, rock, serbia, serbian, smelter, smeltery, smelting, smoke, soil, stack, steam, zijin bor, zijin china, zijin mining,