Knowledgeable person antifreeze (frozen liquid) originated in the United States, partially filled in China, and the stock solution was imported from the United States. Model CN is filled in China, and the stock solution is imported from the United States. Among them, bestv AF850 is imported from the United States, and AF2 100 is the flagship product of bestv. The models sold all over the world are the same, except that AF2045 and AF2055 were developed for China to meet the needs of low-end consumers. Prestone bestv is a brand with a long history in American auto supplies industry. Bestv belongs to UCI-FRAM Group and Yousi-Fangpai Group. UCI-FRAM Group Yousai-Fangpai Group is one of the largest and most diversified auto parts and auto care products companies in North America. Pass & ampReg 1927 invented antifreeze, which is the first enterprise in the world to produce automobile antifreeze with ethylene glycol as raw material. Today, bestv continues to maintain the leading antifreeze coolant technology in the world, and is the first antifreeze manufacturer in OE factory and aftermarket in the United States. Its universal long-lasting antifreeze coolant has become the original antifreeze of well-known manufacturers such as General Motors and Ford, and has occupied the first place in the sales volume of antifreeze coolant products in the North American automotive aftermarket for many years. Regarding the origin of Blockbuster antifreeze (frozen liquid), car owners can pay attention to the product packaging when buying Blockbuster, which is marked with "American stock solution, imported", meaning "the stock solution is imported from the United States and the product is filled in China!"