https://steelselect.com.au/resources/cad
- Steel roofing and walling
a path through the web to GDL sources
Websites from manufacturers offering GDL objects for download or BIM content platforms
https://steelselect.com.au/resources/cad
https://www.m-sora.si/en/help/bim-archicad
https://www.kinnarps.co.uk/design-tools/product-downloads/
https://johansondesign.se/downloads/cadbim
https://www.b-prisma.de/hersteller/projekte/wilde-spieth/
https://www.nationalbimlibrary.com/en/archicad/