How Hard/Durable are the Plated Surfaces
Subject says it all I guess. Will it flake off or is the electroplating process pretty durable? Zinc has seemed to hold up so far. Curious about the Chromate and black oxide finishes. I'm specifically referring to nuts and bolts that are plated in these finishes:
zinc/cad - Copy Cad Kit
chromate (yellow and black) - Copy Cad Kit
cold black oxide - Black Oxide Kit
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