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Engineers are checking fire extinguishers.
Related tags:
- fire system
- fire alarm
- fire protection
- fire safety
- extinguisher
- fire extinguisher
- smoke alarm
- fire prevention
- fire fighting
- hydrant
- fire hydrant
- hazard
- security services
- firefighter
- precautions
- danger sign
- security alarm
- pump
- safety signs
- alarm system
- valve
- safety
- security system
- hazard sign
- alert sign
- danger
- warning
- warning sign
- fire sign
- pipeline
- alert
- emergency
- security check
- safety and security
- building fire
