Professional technicians are resting and using mobile phones.
Palabras clave
app,
builder,
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mobile phone,
mobile phone,
check,
communication,
connection,
construction,
contractor,
control,
engineer,
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equipment,
mill-hand,
contraption,
hard hat,
helmet,
industrial,
industry,
cyberspace,
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male,
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manual,
mechanic,
media,
message,
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repairman,
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site,
smart,
smartphone,
text message,
social,
taking,
technical,
technician,
technology,
testing,
touch screen,
using,
work,
men at work,
working man
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