It sounds like you’re referring to a document titled — likely a technical resource about the Tridilosa structural system, used for covering large spans (like industrial roofs, sports arenas, or hangars).

Estructura Tridilosa Para Grandes Claros.pdf 〈2K〉

It sounds like you’re referring to a document titled — likely a technical resource about the Tridilosa structural system, used for covering large spans (like industrial roofs, sports arenas, or hangars).