Air conditioning ducts

Abstract

As shown in the "Reference diagram showing the names of each part," this product is an air conditioning duct in which the outer wall is made of recycled cardboard or the like soaked in a non-combustible liquid, with metal foil such as aluminum foil affixed to the entire inside surface of the outer wall, flame-retardant bars for hanging are provided at two lower corners as receivers for the hanging metal fittings, and bars for joining and maintaining strength are provided at two upper corners. This product is used for hanging and in the vertical direction on the wall of a building, etc. These components provide an air conditioning duct with non-combustible properties.

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