igds_type: igds_3d_solid
This is supported for v8 only. This element should not be confused with igds_solid as it correspond to IGDS element type 19 (not to unnamed cell).
FME supports both reading and writing; however, support is currently limited to only extrusions. Solids that are not extrusions or boxes will be written as meshes.
Tip: Unsupported solid types can be converted to meshes and read that way if needed.