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Heavy mining equipment and machines at work in a brown coal open-pit mine at dusk.
Large quarry dump truck. Big yellow mining truck at work site. Loading coal into body truck. Production useful minerals. Mining truck mining machinery to transport coal from open-pit production
A large quarry dump truck in a coal mine. Loading coal into body work truck. Mining equipment for the transportation of minerals.
Giant truck at bauxite mine. Heavy vehicles for mining exploration
Excavator dig trench on sunset background. Backgoe on earthwork. Construction natural gas pipeline. Construction the sewage and drainage. Laying sewer pipes at construction site. Open pit mining.

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