Matte fish-belly white is easy to bleed. Fish-belly white marble belongs to dolomite marble, mainly calcium carbonate and magnesium, because white stone is more easily polluted than other stones. It is suggested that in property maintenance, the stone surface should be cleaned and dusted in time, and daily maintenance should be strengthened, with special attention paid to the overflow of substances such as cola, wine stains, tea stains, carbonated drinks, toilet cleaner and 84 disinfectant. . In case of similar pollution, it shall be cleaned within 10 minute and supplemented with crystallization agent. If the corrosion is shallow, it is recommended to use refurbished powder for polishing (or special agent for crystallization), and then gradually polish to restore luster and clarity. If the corrosion is deep, it needs to be renovated.