Import Splines from Rhino and pipe them in Unity? Usable for Mobile?

HI there ;) I was wondering if there is a possibility to add rhino splines to Unity. I tried and could not get anything imported. Maybe you can help me out here :) Is there a working plugin or something that makes Splines or Polylines usable as 3D Lines? I want to import Data like this:

A perfect solution would be if I could handle the thickness of the 3D Lines via shader / script :)

I found a plugin can import SVG Data, but these files don´t have the possibilities my 3D Curves would have, because in the end SVG is still 2D :(