Coal mining Wikipedia
Coal miners leaving an American mine at the end of a shift (April 1974). Surface coal mining in Wyoming in the United States. A coal mine in Bihar, India. A coal mine in Frameries, Belgium. Coal mining is the process of extracting coal from the ground. Coal is valued for its energy .. In this mining method, explosives are first used in order to break through the.
FREQUENTLY ASKED QUESTIONS . Mine Safety and Health .
Apr 9, 2018 . Make the examination record available to MSHA and miners' representatives, .. The rule does not limit operators to a single examination or prevent ongoing .. A. Contractors are operators subject to the examinations rule.Get Price