Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Lining
Inventor
active
Cementitious compositions and a method of their use
Cementitious compositions and a method of their use
Method and equipment for ventilating underground workings
Roof bolts for use in mines, a method for their production...
Roof bolts for use in mines, a method for their production...
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Profile ID: LFUS-PAI-P-2447538