The SONODEC® 25 consists of a perforated aluminum laminate inner duct thermally and acoustically insulated with glass wool and is provided with an
The SONODEC 250 series consists of a perforated aluminum laminate inner duct thermally and acoustically insulated with glass wool and is provided
The SONODEC CE series consists of a perforated aluminum laminate inner duct thermally and acoustically insulated with glass wool and is provided