The most important manifestation of cat culture is the use of cat litter, which was invented by the United States in 1948. After more than 50 years of research and development, the quality has been very good. The early cat litter mainly consisted of non-condensing cats However, with the continuous progress of cat litter technology, people are not confined to storing as simple as this, so not only the current condensed sand, wood sand, crystal sand and the like have appeared. Bentonite sand with its low price, good condensing power and deodorant, the style is also more consistent with the nature of cats and other advantages, has been a popular choice for cats abroad, bentonite ore also accounts for as much as 80% of the international market. .