Today there is a thing named 1-chlorooctadecane, which exists in the land of China. This thing has unique properties and a wide range of uses. Its preparation method, craftsmen have a wonderful recipe, or after many trials, to achieve the best condition. It can make a difference in all kinds of fields, or help the equipment run smoothly, or be the basis of chemical synthesis. Merchants in the city, widely promote this thing, hoping that it will be used by all kinds of industries, to prosper the industry of China and promote the prosperity of people's livelihood. Everyone looks forward to this thing in the land of China, to develop its talents, and to add brilliance to the country.