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In premium products, appearance quality is directly linked to brand perception. Galvanic plating and PVD coatings deliver the metallic luster, color depth, and durability expected in luxury faucets, eyewear, and watches. Yet subtle color variations—caused by production differences, complex geometries, lighting conditions, or environmental exposure—can impact perceived quality. Because these differences are often difficult to detect visually, objective color measurement using CIE L*a*b* values and ΔE tolerance control is essential for maintaining consistent standards across production and suppliers.
