PCB行业市场表现 - PCB概念股午后普遍下跌,仕佳光子跌幅接近10% [1] - 长芯博创、太辰光、鹏鼎控股、亨通光电等个股跟随下跌 [1] 行业动态 - 市场对PCB概念股反应消极,行业整体呈现下行趋势 [1]