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Ball mill - Wikipedia

A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics and selective laser...

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Visit Cape Girardeau - Bollinger Mill State Historic Site

With a pre-Civil War era 5-story mill and one of the only four remaining covered bridges in the state of Missouri, Bollinger Mill is a must see.

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Bollinger Mill State Historic Site | Missouri State Parks

Travel back to simpler days when business in Missouri was about the rushing of a stream over a dam and bridges were covered. Visitors to Bollinger Mill State...

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