Duct construction: Alum foil + Polyester + Steel wire +Alum Foil
Wall thickness: 0.025-0.035mm
Length:10m,7.6m,3m or customized
Inner diameter: 2"-24" (52mm-610mm)
Temperature range: -20~+120°C
Air velocity: 30m/s
Operating pressure: 2500pa
Standard length: 10m
Fire resistance: fire resistance
Package:opp bags+carton
OEM: available