PCB concept is shaken and declined, Red Board Technology and Guanghe Technology hit the limit down.

Under the concept of PCB, stocks like Hongban Technology, Guanghe Technology, Jinan Guoji, South Asia New Materials all hit the limit down. Shengyi Technology, China Jushi, Shandong Fiberglass, Xunjiexing, Shanghai Electric Power, Ping An Electric, and Pengding Holdings all recorded prominent declines.