There are Husha knives in Dali ancient city. Husadao, named after it was produced in Husa Township, Longchuan County, Dehong Prefecture, Yunnan Province, where Achang people live together, has a history of more than 600 years. The life of Achang people cannot be separated from Husadao. Achang people always bring a small copper knife when they are young, and they will change it into a small saber when they grow up. When you are an adult or married, you will change your knife.