Testing in progress warning sign and labels high pressure 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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