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Economical Kaolin Dryer Machine Design And Capacity Calculation In South Africa

3.1 introduction. the unit cost of logging or road construction is essentially derived by dividing cost by production. in its simplest case, if you rented a tractor with operator for $60 per hour - including all fuel and other costs - and you excavated 100 cubic meters per hour, your unit cost for excavation would be $0.60 per cubic meter..

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