400mm diameter 90 degree bend (B90)
400mm Galvanised pressed 90 degree spiral ducting bend manufactured to DW144 spiral ductwork specifications and British Standards. Delivered as one single pressed metal piece.
Note 1: Please note that all metal circular ductwork ninety degree bends are normally manufactured as 'male' fitting to push inside spiral duct lengths
Note 2: The temperature range of galvanised ductwork is maximum 200 degrees centigrade and 250 degrees centigrade short firing.
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