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216 views
08:37 Dec-15-1998
Carlos A.Borges
Small rupture on galvanised steel sheet

For 20 years we are manufacturing a roofing system that you can see on our home page -- http://www.marko.com.br
Recently we are facing a singular problem on the sheet coil, unwounded on the roof, after a number of months.
They are showing a kind of failure, a rupture of a few centimeters without any clear or specific reason.
I would like to know if there are a special kind of test or a special Laboratory where we could send it
in order to understand the problem and avoid it



    
 


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