Komatsu unveils innovative common platform small underground hard rock jumbo and bolter - International Mining
BHP trials first fully electric jumbo at Olympic Dam - GeoDrillingInternational
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Underground jumbo drill machine ultimate guide
Sandvik DD422iE Electric Drill Rig & Mining Jumbo
DT820
Sandvik DT821 Two Boom, Electro-Hydraulic Jumbo Drill Rig
DT820
Epiroc Underground Mining and Tunneling - The answer is Boomer 282, the reliable and robust face drill rig for medium-sized tunnels and drifts. #epiroc #undergroundmining #jumbo #drillrig | Facebook