Introduction to "Nine Dragons": Among the exhibitions of contemporary Nanjing Yunjin brocade techniques and research materials, the most visually striking thing is the eighty-nine-meter-long Yunjin "Nine Dragons" on the wall facing the wall, with bright yellow ground and water feet. On the seawater pattern on the river cliff, nine dragons of different colors and shapes are vividly displayed, graceful and magnificent, with extraordinary style.