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    Severnaya Underground Mine Stages: 1969, 1973, 1991 and 1993 Coal Capacity: 27 MTPY (Strip 1:9) 2 Vorkutinskaya Underground Mine Stages: 1973, 1976, 1994, and 1996 Coal Capacity: 21 MTPY (Strip 1:6) 3 Vorgashorskaya No1 Open Cast Mines Stages: 1975, 1988 and 1992 Coal

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    This guideline covers the open cast mining of ore bearing rock including coal It excludes quarrying and open cast extraction of construction materials, stone and rock (The processing of ore after extraction is covered in the Mineral Processing guideline as this is common to both open cast and underground mining operations) Open cast mining

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    With more than 1,000 large mining machines operating around the world, our equipment has proven to withstand the extreme conditions of openpit mining, from dusty and dirty environments, to severe vibrations, to temperatures ranging from 50° C to +50° C Standard AC multidrive installations have been mechanically reinforced to make them

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    Since the Law on Mineral and Coal Mining No 4 of 2009 (the Mining Law) was promulgated, various implementing regulations, including a number of amendments, have been issued by the Government in pursuing the goals of the Mining Law mining ppt for conveying systems in open cast coal mine

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