04-25-2007, 06:56 PM
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Member
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Join Date: Mar 2007
Location: Chicago, IL
Posts: 1,234
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Re: Telescopic Adjustable columns
"Many inspectors in the U.S. encounter these telescopic columns in permanent use. This is a defect because no telescopic adjustable column has been evaluated by a U.S. evaluation firm and none of their manufacturers cite an engineering report to prove these columns' ability to carry a specific load..."
Adjustable Steel Columns
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