"Bauteile"@de . "architectural members and components"@en . "éléments constructifs"@fr . "elementi architettonici"@it . . . . "Austrittsstufen"@de . . "Gradino di pianerottolo"@it . . "Landing step"@en . . "Marche palière"@fr . . "صدَفة السلّم"@ar . . .