PCB concept is active, Huazheng new materials hit the limit.

The concept of PCB is active, XinTong Electronics and FuSheng Technology, Xianfeng Holdings, Guanhe Technology, Huazheng New Materials all hit the daily limit, International Composite Materials, Minbao Optoelectronics, Ze Cheng Electronics rose by more than 10%, Newtech shares, Dingtai High-Tech, Bojie shares, Chenghe Technology, and Yihao New Materials followed the upward trend.