PCB概念板块大涨 同宇新材涨幅居前

Group 1 - The PCB concept sector experienced a significant surge, with multiple companies reaching their daily limit up [1] - Notable companies that saw substantial gains include Dazhong Laser, Guanghe Technology, Shenzhen South Circuit, Hudian Co., Aoshikang, and others [1] - Other stocks with notable increases include Tongyu New Materials, Mingyang Circuit, Weiergao, Shenghong Technology, and Dongshan Precision [1]