Språk: English
Underground coal mining refers to the activities and processes related to the extraction of coal from underground mines. This includes everything from planning and operation of the mines to the actual extraction and transportation of the coal.
Hjelp oss å finne feil eller mangler i «coalmining». Velg hva det gjelder og beskriv konkret hva som bør endres. Ikke ta med personopplysninger.

















