Aludec ducts are flexible, strong laminate ducts that consist of several layers of aluminium and polyester, with a spiral enclosed between the layer. The duct can be attached to round and oval connection parts without any problems. The fire resistance of the Aludec ducts has been tested in several countries, according to current international standards. The ducts can be used for various purposes at a temperature range of -30ºC untill +140ºC.