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sand and gravel separation machinegravel dressing equipments

Patent US3695427 - Classifyingseparatorfor unpoured, flowable ... Classifyingseparatorfor unpoured, flowable rock-gravel,sandand cement... i zl concrete c o mpri 2 a g ting tan wit an ove ow weir on one Si e an a [58] new of ... and stirred until it departs from the machine, as for settling tankseparation.

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