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Method for opencast mining in unfavorable geological conditions
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Arc-type screen
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Device for termination of conveyor belt joints
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Acid-resistant lining material
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Centrifugal device for separation of materials
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Device for charging hydraulic equipment
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Method of blasting rock in driving mine workings
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Hydraulic classifier
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Method for species and materials working over
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Method of delamination of mica crystals
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Grinder
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Arrangement for disintegrating materials
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