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Fire damper (manually or electrically close the valve, manually reset, and close the valve with a 70 ℃ temperature sensor action)
Positive pressure air supply outlet
2023-05-10Remote control multi blade smoke exhaust port
2023-05-10Circular fire damper
2023-05-10手动调节阀
2023-05-10Fully automatic fire damper
2023-05-10Smoke exhaust and fire damper
2023-05-10Air volume control valve
2023-05-10Square check valve
2023-05-10Multi leaf smoke exhaust outlet
2023-05-10electric control valve
2023-05-10
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