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At industrial scale, surely they recover that copper from the etching fluid?
by shermantanktop 2y ago
At industrial scale, surely they recover that copper from the etching fluid?
- andrewflnr 2y agoEven if they do, the recovery itself would surely have costs. It can't be easy.
- iancmceachern 2y agoIndeed, the enchant is very nasty stuff, it's not easy or clean to do so.