电路板指数盘中跌幅扩大至2%，成分股普遍走弱

Group 1 - The circuit board index experienced a decline, with a drop of 2.01% during intraday trading [1] - Component stocks generally weakened, with notable declines in several companies [1] Group 2 - Dongshan Precision fell by 6.24%, Shenghong Technology decreased by 6.12%, and Jingwang Electronics dropped by 5.86% [1] - In addition, Inno Laser and Shengyi Electronics saw declines of 5.03% and 4.27%, respectively [1]