interior view of a steel factory,steel industry in city of China.
Palabras clave
factory,
technology,
industrial,
machine,
industry,
metal,
equipment,
pipe,
steel,
power,
plant,
pipeline,
valva,
tube,
fuel,
rust-eaten,
manufacturing,
engineering,
piping,
production,
gas,
energy,
stainless,
line,
business,
pressure,
pump,
background,
insulation,
refinery,
heavy,
workshop,
work,
men at work,
resource,
machinery,
electricity,
iron,
technical,
nobody,
system
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