Aerial view of river gravel and sand ballast open pit mining abandoned lake
Aerial view of river sand and gravel exploitation, pit, quarry, ballast
Shuttle spacecraft with ballast takes off into starry space. Successful rocket launch
gray plaster on the wall with fine black pebbles
Worker installing lamp on stretch ceiling indoors. Space for text
Close Up Of Gravel And Rock Surface For Construction And Outdoor Terrain
Worker installing stretch ceiling in empty room. Space for text
Old ship draft on hull, scale numbering. Distance between waterline and bottom keel.
Worker installing lamp on stretch ceiling indoors
Compacting rubble on a terrace under construction using a gasoline powered hand held compactor.
Worker installing stretch ceiling in empty room
Old ship draft on hull, scale numbering, waterline
