Rectangular and square flanges of standard DIN 24193 in series 1, 2, 3 are made to order in the desired materials and nominal sizes.
The flat frames and angular frames of this standard are in uasage for the connection of sheet metal ducts and sheet metal duct sections.
Flat frames and angle frames in special sizes as well as according to the old standards DIN 24158 and DIN 24159 can be manufactured at any time on request.