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- exposure 1
- external and internal factors 1
- external corrosion 1
- external pressure 1
- external risks 1
- external security 1
- extinguishing 1
- Extinguishing agent 1
- extinguishing concentration 1
- Extinguishing Efficiency 1
- extinguishing efficiency, class A fire, water, CAF, gel 1
- Extinguishing foam 1
- extinguishing method 1
- Extinguishing the fires 1
- Extraction 1
- extraction area 1
- extrass in an environment 1
- extreme psychology 1
- extreme situation 1
- extruded polystyrene foam 2