this post was submitted on 26 Mar 2024
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[–] [email protected] 15 points 5 months ago (1 children)

You're absolutely right, if it was actually plating. However, given the contract was for copper ingots, I'd guess the poor quality copper was copper cast into an ingot shape around something worthless rather than what we would consider plating. It could also have been much more about impurities and ores left over from an incomplete smelting/refining process such that trying to hammer or cast the copper resulted in lots of worthless slag.

[–] [email protected] 7 points 5 months ago (1 children)
[–] [email protected] 7 points 5 months ago