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<p>[QUOTE=&quot;rlm&#039;s cents, post: 1808918, member: 7957&quot;]The sheets are formed (thinned) by running it trough roll mills.&nbsp; They only stretch the material in one direction.&nbsp; The original slab may have a blotch of&nbsp; poor alloy in some weird shape, but the mill stretches it in one direction.&nbsp; When it is all done, each of the original blotches is now a line parallel to every other blotch that was there to begin with.[/QUOTE]</p><p><br /></p>

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