PCB概念股再度拉升，诺德股份涨停

Core Viewpoint - The PCB concept stocks have surged again, with several companies reaching new highs and notable increases in stock prices [1] Group 1: Company Performance - Hongchang Electronics, Jiangnan New Materials, and Tongguan Copper Foil have all reached new highs during trading [1] - Nord Shares hit the daily limit up, indicating strong investor interest [1] - Other companies such as Defu Technology, Zhongyi Technology, Shandong Glass Fiber, Shenghong Technology, and Guanghua Technology also experienced price increases [1]