124 6 1Download size Original (5472 x 3648) Large (1920 x 1280) Medium (1280 x 853) Small (640 x 426) Free stock photo of brown coal, brown coal mining, bucket wheel excavators brown coalbrown coal miningbucket wheel excavatorsbulldozercoal mininghambachhigh angle shothugeindustrial plantindustrylandscapemachineminingmonochromeopen pit miningoutdoorspaddle wheelraw material extractiontechnologytransportation systemtravelvehicle
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