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Mill (grinding)Wikipedia

A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cuttingToday they are usually powered by electricity.For instance rock crushing or grinding to produce uniform aggregate size for construction . usually stone or metal, which grind material to the necessary fineness by friction and

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CrusherWikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.The earliest crushers were hand-held stones, where the weight of the stone . Some crushers are mobile and can crush rocks as large asinches. . The electric motor of the cone crusher drives the eccentric shaft to make

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