[Gmsh] Mesh STEP file

[Marc Secca]

Hello!

I am trying to mesh the attached STEP file in gmsh 2.4.2 and define boundaries 
for a cfd solver.  I can merge the file and select the relevant surfaces and 
volume as physical groups but after I mesh to geometry, I open the .msh file 
created and cannot see the boundaries I defined.  I tried saving the geometry as 
a .geo file but surfaces are missing at the pipe intersections.

Is there a better way to do this? Can I repair the missing surfaces?

Thanks for any help you can provide.

Marc
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