- roof bolting rig
- MINING TERMS ТНТ №119
буровой станок для бурения скважин под штанговую крепь
New terms dictionary. 2013.
roof bolting rig
Смотреть что такое "roof bolting rig" в других словарях:
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
