电路板指数盘中上涨2%，胜宏科技涨超8%

Group 1 - The circuit board index increased by 2% during intraday trading on December 9 [1] - Among the constituent stocks, Shenghong Technology rose over 8% [1] - Ultrasonic Electronics and Sanyou Electronics both increased by over 7% [1] - Sanyou Technology and Chongda Technology followed with increases of 6.81% and 6.20%, respectively [1]