The beam pumping unit is homework, under the setting sun
Palabras clave
process,
exploration,
mining,
ascend,
homework,
steel,
metal,
heavy,
industry,
equipment,
extraction,
fuel,
liquid,
gas,
jack,
machine,
rotation,
swing,
power,
economy,
electric power,
energy,
raw,
store,
technology,
environment,
component,
labor,
sunset,
sky,
cloud,
silhouette,
background,
blue,
red,
black,
beautiful,
good-looking,
closeup,
china
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