Kukho iintlobo ezintathu zeengcango zomlilo. IBanga A lucango lomlilo oluyintsimbi yonke, olunokukhuselwa imizuzu engama-70 xa kuthe kwatsha; IBanga B ngumnyango womlilo wentsimbi kunye nefestile, enokukhuselwa malunga nemizuzu engama-50; IBakala C ngumnyango womlilo womthi, onokukhuselwa malunga nemizuzu engama-35.