PCB概念股持续拉升，中材科技等多股创新高

Group 1 - PCB concept stocks continue to rise, with companies such as Zhongcai Technology, Jiangnan New Materials, International Composites, Honghe Technology, China Jushi, and Tongguan Copper Foil reaching new highs during trading [1] - Shandong Glass Fiber and Tiantong Co., Ltd. hit the daily limit, while Mingyang Circuit and Delong Laser increased by over 10% [1] - Other companies like Yihau New Materials, Feilihua, and Shenzhen South Circuit also experienced gains [1]