Performance description
Material: galvanized sheet
Specification: matched with the size of air duct
Structure: the inner wall of the anechoic chamber is filled with 50mm thick centrifugal glass wool, covered with glass cloth and medium 5mm aperture perforated plate
Characteristics: thickness of silencing layer: 50mm
Silencing amount: 15dB (a)
Resistance loss: 40Pa (wind speed 6m / s)
