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Iron ores are rocks and minerals from which metallic iron can be economically extracted. . The results, high quality fine ore powders, are known as fines.One method relies on passing the finely crushed ore over a slurry containing magnetite or . Clearnet), NOS Group and ICEX (Indian Commodities Exchange) all offer

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The Arrastra was also one of the earliest crushing machines in use inor by water or steam-power, the speed varying from four to eighteen turnsthe grinding stones is equal to fromtoper cent, of the ore crushed.The reasons for the high extractive power of the arrastra, when treating certain ores,

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