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Electroforming is a labeling technique that allows high quality, detailed products to be created with the use of a metallic solution. Placing a mould into the electrically charged current causes a build up of particles, which over time bind together to form the badge, label or nameplate.
link:https://www.oemsticker.com/metal-labels/metal-stickers/custom-nickel-electroforming-plate-embossed.html
Permanent Adhesive Metal Stickers