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Large Hard Copper Ore Grinding Ball Mill

2013-5-6and a standard bond ball mill work index test bwi on sag ground orehe sag test reproduces commercial sag mill grinding conditions on 4l of ore and determines the sag mill pinion energy needed to grind ore from 80 passing 152 mm to 80 passing 1mm, herein referred to as macro ore hardnesshe sag mill product is then crushed to 100.

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