Black, black, or black
I bought out a lady and I'm sorting the glass. There are maybe 30 pieces of black but only a few labeled. Eff064, Eff066, and one CIM.
How can I test these so I can label them correctly?
And I'm confused by Transparent" black. All the other Transparent rods are actually transparent, but the black isn't yet 064 and 066 are classified as transparent.
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Teri
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