Name: Double Grille for Spiral Duct(DGD)
Model: DGD
Material: Galvanized steel sheet, Frame thick: 0.8mm

Feature:
Installed directly on a circular duct without frames or other fastening devices.
Used for large locations: E. G. In warehouse, factories, workshops, gymnasiums etc.
The vanes can be adjusted manually and individually to obtain an optimal air distribution.