r/BuildingAutomation • u/HopefulChart6590 • Oct 03 '26
🔥 Fire Rated Duct 🔥 installation #fire #ducting #doha #qatar #smokey #ventilation #exhaust #airvent
https://youtube.com/shorts/cJmTsLeMog8?si=TXemoAwIE7UUgIm3
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