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Smoke exhaust and fire damper (PFHF smoke exhaust and fire damper is usually open, with 4-speed adjustment of air volume from 0 to 90 ° C; the temperature sensor automatically closes or manually closes at 280 ° C, outputting a closing signal; reset can be manually or electrically selected, supporting customized special needs)
Positive pressure air supply outlet
2023-05-10Remote control multi blade smoke exhaust port
2023-05-10Circular fire damper
2023-05-10手動(dòng)調(diào)節(jié)閥
2023-05-10Fully automatic fire damper
2023-05-10Air volume control valve
2023-05-10Fire damper
2023-05-10Square check valve
2023-05-10Multi leaf smoke exhaust outlet
2023-05-10electric control valve
2023-05-10
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