PCB概念股午后冲高，中材科技触及涨停

Group 1 - PCB concept stocks experienced a significant afternoon surge, with Zhongcai Technology (002080) hitting the daily limit up [1] - Defu Technology (301511) rose over 10%, while Jingwang Electronics (603228), Dazhu CNC (301200), and Shennan Circuit (002916) also saw gains [1]