1、消聲性能；
1. Anechoic performance;
鍍鋅薄鋼板風管：無消聲性能，自身震動會產生聲音，必須加裝消聲器。
Galvanized steel sheet air duct: no sound attenuation performance, its vibration will produce sound, must be equipped with muffler.
無機玻璃鋼風管：無消聲性能，隔聲性能優于鍍鋅薄鋼板風管，必須加裝消聲器。
Inorganic glass fiber reinforced plastic air duct: no sound attenuation performance, sound insulation performance is better than galvanized steel sheet air duct, must be equipped with muffler.
復合玻纖板風管：其管壁是一種多孔性吸聲材料，可省去專用消聲器。
Composite fiberglass board air duct: its wall is a kind of porous sound-absorbing material, so special muffler can be omitted.
2、保溫性能：
2. Thermal insulation performance:
鍍鋅薄鋼板風管：導熱系數很大(為60.4 W/m?K) ，無保溫性能，必須另外加包保溫層及保護層。
Galvanized steel sheet air duct: the thermal conductivity is very large (60.4 w / M? K), and it has no thermal insulation performance. Therefore, it is necessary to add thermal insulation layer and protective layer.
復合玻纖板風管：導熱系數小(平均溫度24℃時小于1 W/m?K) ，有一定保溫性能，不加裝保溫。
Composite fiberglass board air duct: small thermal conductivity (less than 1 W / M? K when the average temperature is 24 ℃), with certain thermal insulation performance, without adding thermal insulation.
濟南通風管道工程
Jinan ventilation pipeline project
3、防火性能
3. Fire performance
鍍鋅薄鋼板風管：不燃，但其真正的防火性能視保溫層而定。
Galvanized steel sheet air duct: non combustible, but its real fire performance depends on the insulation layer.
無機玻璃鋼風管：同鍍鋅薄鋼板風管。
Inorganic glass fiber reinforced plastic air duct: the same as galvanized steel sheet air duct.
復合玻纖板風管：外層為鋁箔，以不燃性玻璃纖維棉板為基材，防火性能好。
Composite fiberglass board air duct: the outer layer is aluminum foil, and the non combustible glass fiber cotton board is used as the base material, with good fire resistance.
4、防潮性能
4. Moisture resistance
鍍鋅薄鋼板風管：易受潮腐蝕生銹。
Galvanized steel sheet air duct: easy to be affected by moisture, corrosion and rust.
無機玻璃鋼風管：受原料配比的制約，其防潮性能的穩定性較差。
Inorganic glass fiber reinforced plastic air duct: restricted by the proportion of raw materials, the stability of its moisture-proof performance is poor.
復合玻纖板風管：無易腐材料和部件，但因其為多孔材料，在長期潮濕環境下不建議使用。
Composite fiberglass board air duct: no perishable materials and components, but due to its porous material, it is not recommended to use in long-term humid environment.
5、強度
5. Strength
鍍鋅薄鋼板風管：強度較高，抗靜壓能力強。
Galvanized steel sheet air duct: high strength, strong static pressure resistance.
無機玻璃鋼風管：強度較高，抗沖擊能力脆弱。
Inorganic glass fiber reinforced plastic air duct: high strength, weak impact resistance.
復合玻纖板風管：能滿足一般通風空調的承壓要求，高可承受風壓1500Pa。
Composite fiberglass board air duct: it can meet the pressure bearing requirements of general ventilation and air conditioning, and can withstand wind pressure of 1500pa.

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