Free certified 3D MODELS in Sold Edge , Solid Works, CATIA, PROE (CREO), NX, INVENTOR from many manufacturers . Try it under: http://cadenas.partcommunity.com

This library is included in the "CAD Blocks" section on CAD Forum:
http://www.cadforum.cz/catalog_en/partcommunity.asp
 
points to:
http://cadforum.partcommunity.com/

What is a "certified" 3D model?

Certified 3D models are models that are certified from the suppliers which means that the models you download from
http://cadforum.partcommunity.com/ can be ordered from the suppliers and have a good 3D quality.

And now I know.  Thanks.