of limonite or brown ironstone in wheelbarrows. processing of iron ores by sintering and pelletizing.

limonite ore material sintering pelletizing industry mine iron stone mineral coal rock power background illustration vector pile metal energy fossil icon isolated fuel natural factory black environment resource set lump production miner nature dark metallurgy design piece wagon equipment heat yellow object collection ironstone geology rust heap element metallic brown wheelbarrows processing ores astrological symbol wheelbarrows pelletizing iron