包装印刷概念震荡反弹，宏裕包材30%涨停

Group 1 - The packaging and printing sector experienced a rebound on September 1, with significant gains in stock prices [1] - Hongyu Packaging Materials reached a 30% limit up, indicating strong investor interest and market confidence [1] - Other companies such as Haishun New Materials, Yongji Co., Xiyue Zhixing, Zijiang Enterprise, and Jiaheng Home Textiles also saw their stock prices rise, reflecting a broader positive trend in the industry [1]