DD2-N
DD2-N Face Drilling Rig DD2-N face drilling rig is a compact and flexible rig specially designed for narrow drifts and tunnels with minimum cross-section (width x height) 2.3m x 2.3m. With maximum 5.5m x 4.4m, DD2-N can be widely used in underground mining drifts,hydropower, road and railway tunnels. Woserld Rock…
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