Anthracite mechanical-mining investigations: Use of yielding steel supports (props) in combination with backfilling for mining thick, flat beds Buy on Amazon

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Anthracite mechanical-mining investigations: Use of yielding steel supports (props) in combination with backfilling for mining thick, flat beds

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ISBN / ASINB003HKQUFE
ISBN-13978B003HKQUF9
MarketplaceIndia  🇮🇳
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