two electricians at the substation smile near the danger sign
Palabras clave
helmet,
signs,
high,
construction,
electric,
electrical,
electrician,
electricity,
happy,
industrial,
industry,
male,
man,
plant,
professional,
substation,
technical,
transformer,
uniform,
work,
men at work,
automation,
background,
cheerful,
connection,
control,
current,
danger,
positive,
voltage,
alternative energy,
switch,
electronic,
presentation,
fence,
warn,
distribution,
line,
smile,
volt,
warning,
danger zone,
explain,
teaches,
thumb,
portrait,
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