mining tunnelling underground

  • EquipmentMine New and Used Mining Equipment

    EquipmentMine is a searchable database of new, used and surplus mining equipment and parts available for sale.

  • Underground mining (hard rock) Wikipedia

    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds. Soft rock mining refers to excavation