PCB概念震荡走强，深南电路涨超8%创历史新高

Group 1 - PCB concept stocks experienced significant gains, with ShenNan Circuit rising over 8% to reach a historical high [1] - International Composites hit the daily limit, indicating strong market interest [1] - Other notable gainers included Chipbond, Dongshan Precision, Mingyang Circuit, Honghe Technology, and Dazhu CNC, all showing substantial increases [1]