He maha nga huarahi ka taea te tukatuka i ngā kohuke. Ko tētahi o ēnei huarahi kai roto i te tukanga o te wehenga hiko. Mā tēnei tukanga ka taea e ngā pūtukatuka kohuke te wehe i te tino kounga

Once deposits of iron ore are extracted from the ground. They must be processed in order to increase the iron content and decrease the concentration of gangue minerals. This process