Description Galvanized lightweight steel sections to be used as a perimeter channels for Knauf ceilings are cold-rolled from high-grade galvanized steel sheets that complies with EN 10327 Product Description Galvanized lightweight steel sections to be used as perimeter channels for Knauf D11 Ceiling and W623 Wall Lining System. Knauf ceiling metal sections are cold-rolled from high-grade galvanized steel, which complies with EN 10327. All Knauf metal sections comply with EN 14195 and DIN 18182-1 Field of Application Nonious Ceiling System / Wall Lining System download data sheet