Apparatus for bending and cutting cable in rock bolting...

Apparatus for positioning anchor bolts and method of using same

Apparatus for raise drilling

Apparatus for static underground drilling

Apparatus for storing a concrete feeding hose in a rock...

Apparatus for the passive support of overhead solids and...

Arched support structure

Arcuate precast tunnel lining segments

Arcuate tunnel lining segments

Arcuate tunnel lining segments

Arrangement for anchoring a rod-shaped tension member of...

Arrangement for feeding bonding material

Arrangement for injecting and affixing a reinforcing or...

Arrangement for widening and forming smaller, vertical or...

Articulated steel cap for underground timbering

Assembly having a surface which is to be insulated and process

Attachment anchor assembly

Attachment elements

Attachment means for securing a rock bolt dolly to drill steel

Automatic control of a machine used for excavating drifts,...