Heaven artificial sky perfected. (Machine-translation by Google Translate, not legally binding)

摘要

Improved artificial sky-satin, essentially characterized, by being constituted by plates obtained from plastic material, which have at least two opposing edges provided with a fold that is constituted as a guide for sliding them by the support joists, said plates being obtained in combination with hollow side profiles that cancel out to the walls constituting support for the edges of the end plates that form the sky-satin. (Machine-translation by Google Translate, not legally binding)