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Grinders also help to remove excess material for easier collection of goods. This is often done through crushing, grinding, or breaking down larger chunks of material to extract the desired product. The mining industry has made great strides in extracting deposits and removing the desired material from waste.

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Coal mines file screening plans with NIOSH that identify local health facilities where miners who are currently employed can be screened. The plan also lists 6 month periods every 4 to 5 years when screenings occur at the mine's expense. The screening plan should be posted on the mine's bulletin board.

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