Smelting furnace used to extract metals from their ores, chiefly pig iron from iron ore. The temperature is raised by the injection of an air blast.
In the extraction of iron the ingredients of the furnace are iron ore (iron(III) oxide), coke (carbon), and limestone (calcium carbonate). The coke is the fuel and provides the agent (carbon monoxide) for the reduction of the iron ore.
Green stands for agriculture, the lush vegetation, and the enduring vitality of the population. Gold symbolizes warmth, the bright spirit of the people, and the golden sands. Blue represents the sky and sea. Effective date: 24 October 1985.