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xanasax
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Join Date: Dec 2010
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Re: Quality and Purity

08/08/2011 11:50 AM

I encountered this problem in a shipyard where I worked in the 1970s, the rolled steel (12mm thick) plates were of the right quality (purity) steel, but during the rolling proccess slag was rolled out into a thin layer midway in the plates, thus the quality was the problem, this was discovered using an ultra-sound device!

Spencer.
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