Walking excavator
Palabras clave
asbestos,
dust,
ore,
hill,
mineral,
produce,
shoveling,
earth,
rock,
quarry,
power,
arrow,
loading,
digging,
walking,
open,
technology,
mine,
mechanism,
energy,
enterprise,
bucket,
industry,
factory,
rust-eaten,
equipment,
machine,
work,
dirt,
pollution,
railroad
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