Patina and crystals of blue vitriol on copper plates anodes of galvanic installation close-up background, copper sulphate, copper sulfate, bluestone, electroforming plates Tote Bag #277847354
Patina and crystals of blue vitriol on copper plates anodes of galvanic installation close-up background, copper sulphate, copper sulfate, bluestone, electroforming plates Tote Bag #277847354