PCB concept oscillation rebound, Jinan Guoji's stock rose limit for 2 consecutive days.

In the afternoon, the concept of PCB rebounded with shocks. Jintai Precision, Jiangsu National Security, rose limit up for 4 days in a row, Zhongfu Circuit surged more than 10%, Willgo, Jiayuan Technology, Xiehe Electronics, Fangbang Stock, and others followed the uptrend.