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Book Description paperback. Condition: New. Pub Date: 2014-01-01 Pages: 312 Language: Chinese Publisher: Coal Industry Press Yanzhou Mining: with hard tuberculosis body thin seam mining theory and efficient sets of mechanized mining technology system introduced for thin seam of Yanzhou Mining (coal about 1m thick and hard tuberculosis generally contain iron sulfide body) conduct research mechanized mining. the main contents include: basic theory containing TB hard body thin seam mining. the new Thin Seam Mining outfit. thin seam mining. Seller Inventory # BY027527