You can try exporting out as an IFC file from CAD...else build it in Revit using a curtain wall. May require two of them if you don't want separations between the mullions.
I am not able to export from AutoCAD as .ifc file.
@Anonymous wrote:
I am not able to export from AutoCAD as .ifc file.
You can't unless you modeled it in a vertical such as AutoCAD Architecture.
Wblock the part you want show to a new DWG file. Link it in Revit, or link it in an in place family as a generic model. Move it to align with your Revit model.