Foam blocks for construction of mine tunnel stoppings
Grouting method and apparatus
Holding body to attach a sealing foil of synthetic material to a
Inflatable underground structure liner
Insulated tunnel liner and rehabilitation system
Insulating tunnel liner system
Junction seal between a liner of an underground structure...
Lined rock cistern or tunnel
Lining element for a drilled tunnel
Lining of pipelines and passageways
Lining of pipelines and passageways
Lining of tubular structures
Lining or relining of tunnels
Linings for sewers
Mapping of contaminants in geologic formations
Material and method for lining pipes
Method and apparatus for feeding a tunnel roof support...
Method and apparatus for relining underground passageway
Method and apparatus for removing contaminants from a duct or pi
Method and apparatus for the production of underground pipelines