a crawler excavator works at a construction site next to the road. urban construction background with excavator for industry

background backhoe bucket business caterpillar city construction crawler digger digging dipper dredge dredger earth earthmoving earthwork enclosure enhancement equipment excavation excavator fence hopper improvement industry ladle loader loading machine metal moving next pipe power quarry road sand scoop selfunloading shovel site soil technique transport transportation transports trough unloading urban vehicle work works