Air duct assembly for air duct constructions in e.g. industries,has bracket that is partially penetrated into openings of corner angle element provided with two legs arranged at predetermined angle

摘要

The assembly has air duct sections and frame flange with the corner angle element (10). The corner angle element is provided with two legs (11) arranged at angle of 45 degree. The flange (12) is provided with two openings (14) formed at predetermined distance. The projecting tabs (08) are arranged at distance (a) along a longitudinal axis (06) of a holding portion (05). A bracket (01) is partially penetrated into the openings of the corner angle element.