A股PCB板块震荡走弱，江南新材触及跌停

Group 1 - The A-share PCB sector experienced a downturn, with Jiangnan New Materials hitting the daily limit down [2] - Other companies such as Shenzhen South Circuit, Hangzhou Dianzi, Dongshan Precision, Pengding Holdings, Xingsen Technology, and Huadian Co. also saw declines [2]