Insulated vent duct 1.length: 10m/pcs(as the customer required) 2.Dia:2''--24'' 3.temperature: -40degree-150degree

1.length: 10m/pcs(as the customer required)2.Dia:2''--24''3.temperature: -40degree--150degree

4.construction:pvc coated fabric(green,blue)+galvanized steel;silica fiber cloth(grey)+galvanized seel

pvc canvas ventilation air duct(blue color)