Opening angle It is understood that the general manager of Xiamen Xiyan Yuan Chao is Zhang Jiao. Xiyan Yuan Chao is a traditional birdcage handicraft in China, which is mainly used for raising birds for people to watch, but also has decorative and aesthetic purposes. In addition, the production of Xiyan Yuan Chao is exquisite, with high-quality materials and exquisite craftsmanship, which makes it have extremely high scientific and technological aesthetic value.