air duct,ventilating duct
[DE] Luftkanal
[EN] air duct; ventilating duct
[FR] conduit d' air; gaine d' air
air duct,ventilating duct /ENG-MECHANICAL,ENG-ELECTRICAL,BUILDING/
[DE] Luftkanal
[EN] air duct; ventilating duct
[FR] conduit d' air; gaine d' air