http://www.buildingtalk.com/news/sif/sif000.html Sigma-X news releases on Buildingtalk en-gb Copyright (C)2008 Pro-Talk Ltd. All rights reserved. Fri, 21 Nov 2008 08:00:00 UT Fri, 21 Nov 2008 08:00:00 UT http://www.pro-talk.com/images/protalklogo90.gif http://www.pro-talk.com/ 90 79 Announcing the launch of Sigma-X post tensioning analysis and design software for slabs, floor systems and bridges - designed by engineers for engineers. Thu, 01 Dec 2005 08:00:00 UT Sigma-X http://www.buildingtalk.com/news/sif/sif100.html