This process is a unique decorative coating, which can plate a smooth and delicate matte white pearly nickel layer, just like the crystal on the surface of a pearl, with a soft luster, noble and elegant, and is widely used in jewelry, clock accessories, glasses, electrical appliances, Bathroom accessories, auto parts and other hardware accessories, the coating does not stick to fingerprints, and can be plated with other coatings, such as: gold, silver, palladium nickel, cupronickel tin, gun color, chrome, etc. to meet various sensory effects.