Workshop of big coal plant.
Palabras clave
coal,
plant,
factory,
work,
processing,
production,
transportation,
treatment,
station,
business,
construction,
equipment,
sky,
steel,
structure,
technology,
industrial,
process,
industry,
mill,
mine,
separation,
iron,
condensed,
ore,
mineral,
mechanical,
conveyer,
quarry,
pit,
environmental,
environment,
mashed,
receiver,
refinery,
engineering,
energy,
development,
export,
chimney,
built,
extraction,
mining,
metallurgy,
metallurgical,
hoist,
manufacturing,
background
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