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Piles of construction materials at a recycling station in South San Francisco Bay Area;
Aerial view of a large quarry in Racine County, Wisconsin, on a sunny day in Fall.
Anibare District, Nauru: phosphate mining continues in Nauru, although on a smaller scale than in the past, when it was crucial for the country's economy. Except for a narrow coastal strip, the inner part of the island was covered by phosphate (Nauruit) formed from the droppings of seabirds.
Heavy machinery such as excavator works at a quarry.
pile of sand and gravel processed by a natural stone crushing machine
A conveyor belt in a quarry transfers sand to a pile
Conveyor belt and pile of gravel in open-pit mining. No people.
BRAZIL QUARRY AND CRUSHER
A Sulphur pile in Vancouver, Canada.
Many small crushed stones on the production line at the construction materials production factory, heavy industry concept
Conveyor belts transporting rocks onto large mounds of gravel
Cement factory, Venezuela
Rock quarries in the Al Haouz Mountains, Jabal Al Abyad
Quarry mine industry rock extraction heavy machinery equipment
Concrete plant. Toned Image.
Phosphate mining on Christmas Island, Australian Territory. Stones are transported over conveyor belts to freight ships in the harbor.
BRAZIL QUARRY AND CRUSHER
Anibare District, Nauru: phosphate quarry - phosphate mining continues in Nauru, although on a smaller scale than in the past, when it was crucial for the country's economy. Except for a narrow coastal strip, the inner part of the island was covered by phosphate (Nauruit) formed from the droppings of seabirds.
Apron feeder breaker belt conveyor and crushing for mining and quarrying industry.
Aerial view of wood processing factory with smoke from production process polluting atmosphere at plant manufacturing yard. Industrial site at sunset.
Cement factory. Heavy industry. Building material industry.
Extraction of granite. Open cast mine. Stone Quarrying.
Concrete plant at sunset
Rock and gravel quarry, Northern California.
A conveyor belt in the construction site
Extraction gravel. Machinery distribution and classification by size gravel. Conveyors for transporting gravel.Gravel quarry. Construction industry.
Heavy machinery working in the quarry
Stockpile and conveyor belt at an open-pit copper mine in Latin America
Italy,  Cararra marble quarry, blocks of white marble.
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