Ceiling collection:
https://3dsky.org/collection/shared/5313907 

CORONA + VRAY (2013)
FBX CORONA + VRAY (2009)

Armstrong ceiling systems with a set of components. For convenience, ceiling modules are presented in several assembly options. The archive contains explanatory ceiling assembly diagrams and the location of parts. The UVW Map modifier is left in the plate models to allow changing the image.
Links to all models are in the attached text file.

The set contains:

- Armstrong ceiling system.
- Ceiling panels 600 x 600 mm.
- Ceiling panels 600 x 1200 mm.
- Ventilation grilles.
- Sprinkler irrigator.
- CCTV camera.
- Built-in air conditioner.
- Technical lighting.
- Fire alarms.
- Signs.

Other sets:

https://3dsky.org/users/solomon5555/models