Salome and Elmer unv files on sub-geometries

Good morning,

I am trying to solve a 3D problem of heat transfer on a geometry constituted of different materials. I have implemented the geometries using Salome and identified per group each sub-geometries corresponding to specific materials. When I am trying to convert the unv file generated by Salome into Elmer UNV, I do not retrieve in Elmer the different bodies. I get the boundary conditions but not the different sub-geometries.

Best regards,

Frederic Trillaud