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Hot Niter Bluing of Small Parts
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TFB Armorer's Bench: Education on Bluing Types & Processes – Part 2The Firearm Blog
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How to Nitre Blue Gun Metal Without Nitre Salts - YouTube
Bluing (steel) - Wikipedia
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Hot Caustic Salt Blue | American Bluing & Guns, LLC
Home nitre salts bluing | Northwest Firearms
Inst-362 Nitre Bluing Bluing | PDF | Rust | Water
Gun Bluing
