fire sprinkler system | fire sprinkler testing | sprinkler working | testing point
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- Опубликовано: 13 сен 2024
- how sprinkler burst and water flow.
sprinkler test point area for mock test.
testing of fire sprinkler system
#sprinkler_testing
#testing_point
#fire_sprinkler_operation
#fire
#fire_fighting
#thank_you
