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Product Introduction
CNB’s copper‑clad steel composite sheets combine the timeless beauty of solid copper (red copper, brass) with the structural economy of steel. This material is the standard for modern copper entrance doors, Buddhist temple decorations, and luxury villa roofing. Unlike thin copper foils, our clad layer is thick enough to develop a natural patina or be chemically aged. It can also be lacquered to preserve its bright finish. The steel core provides flatness and easy welding to door frames.