► Rectangular Ducts; Black or DKP sheet is manufactured a self-flanged bracket flange with 1mm-3mm thickness. Standard Length is 1200 mm. Round Duct; Welded sheet metal of thickness between 1mm-3mm are produced.
Standard duct lenght is 1200 mm. Flange bellmouth are made flat. Flange Manufacturing; Lamar iron flanges are welded to both ends of the bent channel. These flanges drilled holes evenly spaced channels are added together. Inner and outer surfaces of the duct are coated with 250 ˚C heat-resstant paint.