Cover, for desk duct external corner base section 90°, consisting of a right and a left cover section, visible surfaces electrostatically powder-coated in RAL color according to manufacturer's catalog, including 2 equipotential bonding terminals GPK 63 per pair. for desk duct external corner 90°: PLA 120-78 C for cover opening: 78 mm Surface structure: Visible surfaces smooth Color: [customer information required] RAL: [customer information required] Material: Steel, strip galvanized according to DIN EN 10346 Delivery: in pairs