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This document establishes a classification of mining methods by ore grade and recovery, cost of infrastructure, ore extraction, labour and machine costs, underground support costs and geotechnical factors.
Reģistrācijas numurs (WIID)
86790
Darbības sfēra
This document establishes a classification of mining methods by ore grade and recovery, cost of infrastructure, ore extraction, labour and machine costs, underground support costs and geotechnical factors.
