Adobe after effects video with 3D model

I can see the desire to bring this into After Effects, especially if you plan to add labels or pointers to highlight areas.  Depending on the CAD software, you should be able to export as something 'universal' like OBJ and import that into either C4D Lite or for my preference Element 3D.  Element is a 3rd party plug-in for AE, but you'd be able to texture the obj, move it around and it will generate 3D null's for you to link text too.

You need to link the video directly, not a search. It's impossible to figure out which video you even mean. That aside: No, AE is not a 3D program and you seem to seriously underestimate the work that goes into converting a CAD-based model into animatable 3D data. I've done this for decades. That being the case, the answer to all your questions most likely is "No", as converting CAD data would involve a full 3D program (explicitly not the C4D Lite bundled with AE) and then it becomes a matter of "Why even bother to make things even more complicated?" You'd simply animate your stuff in the 3D program and only use AE for additional compositing. Anyway, impossible to provide a definitive answer, so by all means give us a direct link to the video.

Mylenium