Introduction to Ouye Swords: Ouye Swords at No. 191 Hefang Street is the most well-known traditional crafts time-honored brand in my country. Its founder Ouyezi cast the first iron sword in Chinese history: "Longyuan" (Longquan) sword), creating a precedent for China's cold weapons. Ouye swords are famous for their four characteristics: "tough and sharp, a combination of hardness and softness, a cold light, and exquisite patterns." The swords of the National Flag Guard, Dalian Female Mounted Police, Taiyuan Mounted Police, and Wenzhou Mounted Police are all made by Ouye. Design and casting of swords.