Application Area
It is mainly used in civil buildings, public buildings, industrial building depots and other fields.
The civil fire-resistant air duct type B uses 15mm air gel modified aluminum silicate cotton board as the thermal insulation and fire protection layer. Galvanized steel plate is used inside and outside. The thickness of the inner steel plate is selected according to the national specifications. Angle steel flange is used. The fire resistance time is 90min.
It is mainly used in civil buildings, public buildings, industrial building depots and other fields.