SOUND ABSORBING DUCT WITH FOAM-FILLED HONEYCOMB CORE FOR ENVIRONMENTAL CONTROL SYSTEM
Sound absorbing duct with foam-filled honeycomb core for environmental control system
Sound absorbing duct for environmental control system
DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS
Ducts comprising exoskeleton and sound-absorbing structures and vehicles using such ducts
DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS