光刻机概念股走低，凯美特气触及跌停

Group 1 - The semiconductor lithography equipment sector is experiencing a decline, with significant drops in stock prices [1] - Key companies affected include Kemet, which hit its daily limit down, along with Wavelength Optoelectronics, Huate Gas, Yongxin Optical, and United Chemical, all of which saw notable decreases [1]