Our customer is having an assembly in UG NX, we need to import the assembly in SolidWorks with same material properties like mass, moment of inertia etc.. Upon converting it to parasolid(.x_t) and opening in solidworks, material properties and part number(s) changes w.r.t UG NX. On opening the UG NX assembly directly in solidworks, reference planes and sheets are still imported even after deselecting the reference plane tab in "import options", furthermore, material properties after importing are still not matching. Please help.