Synonyms were used for:
Bergbau
Search without synonyms:
keywords:(Bergbau)
Advantages of moving iron ore by underground conveyors
Aerial tramway is transportation link at Pond Creek
A haulage system with gathering locomotives only
Airlift and lift equipped with container feeders
Air lift to labrador iron fields
Application of compressed air in linite industry
Armadillo heavy duty face conveyor
Automatic rope haulage clip for mine cars
Belt pulls shuttle car output up 7 percent grade at Standard
Big wheel loaders handle many jobs
Bituminous strippers install shovels and draglines and adopt larger automotive haulage units
Derailments on main and tail haulages, and on direct rope haulage