CPO概念股再度拉升，长飞光纤涨停

Group 1 - CPO concept stocks have surged again, with Changfei Optical Fiber hitting the daily limit [1] - Tianfu Communication has increased by over 9% [1] - Companies such as Shijia Photonics, Xinyi Sheng, Zhongji Xuchuang, and Huafeng Technology have all seen significant gains [1]