Cupronickel plate generally refers to copper-nickel or zinc white copper plates/strips (such as B10/B30 or BZn15-20/C7541), known for their silver-white appearance and stable color tone. Combining excellent seawater corrosion resistance, good strength, and formability, they are widely used in marine piping backer plates, heat exchanger components, electronic/connector shielding parts, and eyewear/hardware decorations.