Testing in progress warning sign and labels high voltage testing in progress
Palabras clave
signs,
testing,
progress,
caution,
laboratory,
disturb,
disturbed,
cautious,
warning,
beware,
hazard,
laboratory,
examining,
safety,
protection,
industrial,
protective,
safe,
professional,
isolated,
dangerous,
area,
experiment,
research,
chemist,
science,
enter,
process,
quiet,
keep,
out,
away,
industry,
authorised,
personnel,
high,
voltage,
pressure
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