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Old January 1, 2013, 02:27 PM   #9
dahermit
Senior Member
 
Join Date: October 28, 2006
Location: South Central Michigan...near Ohio, Indiana.
Posts: 4,096
From your pictures, it looks like inclusions (dirt, slag, etc.) to me. Flux, stir, and skim. Flux, stir, and skim.
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