PCB concept repeatedly active, Guanghe Technology and other stocks hit the daily limit.

The concept of PCB is becoming active again, Guanghe Technology and Yidun Electronics have hit the limit up, Shiyun Circuit and Chaoying Electronics hit the limit up earlier, Xunjiexing, Xinqi Microelectronics, Lite On Optoelectronics, Tongyu New Materials, and Minbao Optoelectronics rose more than 10%, Shennan Circuit, Oshkosh, and Shanghai Electric Power are approaching the limit up.