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You searched for: Acquisition Source Consolidation Coal Company Remove constraint Acquisition Source: Consolidation Coal Company Topical Subjects Coal-mining machinery. Remove constraint Topical Subjects: Coal-mining machinery. Topical Subjects Mine roof bolting. Remove constraint Topical Subjects: Mine roof bolting.
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Miners using a machine to bolt the mine roof.
Two miners work with a Joy roof bolt drill at Jamison No. 9.