Petra Seismic Design
Thursday, October 21, 2010
http://www.petraseismicdesign.com/
Tuesday, October 19, 2010
My new Facebook page http://www.facebook.com/pages/Petra-Seismic-Design/100887189977497
Please join me at my group! http://www.facebook.com/group.php?gid=158466274178661
Our website: http://www.petraseismicdesign.com
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