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PZC – Round sound attenuator

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Outer casing is made of galvanised sheet steel, filled with sound absorbing material. The inner duct is made of perforated galvanised sheet of steel.

PZM – Interspace sound attenuator

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PZM attenuators are made of galvanised sheet steel, containing sound-absorbing material infill.

TSD – Attenuator flexible or rigid execution

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ALUFLEX attenuators are also based on Aero ALUFLEX ducts. The inner duct is mechanically perforated in the area of the insulation section.
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