纳米银板块领跌，下跌2.38%

Group 1 - The nanometer silver sector led the decline, dropping by 2.38% [1] - Among the companies, Western Materials fell by 4.7% [1] - Yingtang Intelligent Control decreased by 4.28% [1] - Ultrasonic Electronics experienced a decline of 3.3% [1] - Yangzi New Materials dropped over 3% [1]