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The Smooth surface can be easily processed and molded, which saves lots of precious copper materials than single cooper. Unbleached copper is bright red and can change from bright red→ dark red→ copper → bronze due to natural oxidation, which can fully reveal that life characteristics of cooper decoration color will change with passing time. If the surface is coated with fingerprint-proof varnish, color changes will be delayed. Copper surface can also be through manual oxidation colored into cooper, bronze and green cooper.
The Smooth surface can be easily processed and molded, which saves lots of precious copper materials than single cooper. Unbleached copper is bright red and can change from bright red→ dark red→ copper → bronze due to natural oxidation, which can fully reveal that life characteristics of cooper decoration color will change with passing time. If the surface is coated with fingerprint-proof varnish, color changes will be delayed. Copper surface can also be through manual oxidation colored into cooper, bronze and green cooper.
