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Companies that use pot metal it and just call it alloy.
Companies that use billet alum will say cnc machined billet and for example the grade.
Pot metal has seam marks and are often painted because it can not be anodized.
Machined alum billet parts can be anodized and looks so much better.
The first pic below is pot metal shell, the second is billet machined.
Last edited by SuperHog; January 30th, 2014 at 18:21..
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