The A-share PCB concept sector fluctuated and strengthened, with Helitai hitting two consecutive limit-up days, Shandong Fiberglass closing at the limit-up price, and Tongyu New Materials, Xingsen Technology, Han's Laser, Honghe Technology, Dongcai Technology, Rilian Technology, Eco Optoelectronics, Qiaofeng Intelligent, and Kexiang Shares hitting new intraday highs.
