化工板块集体反弹，红宝丽领涨封涨停，多只个股涨幅超5%

Group 1 - The chemical sector experienced a collective rebound on July 1, with Hongbaoli leading the surge by hitting the daily limit up [1] - Other stocks such as Shandong Heda, Changqing Technology, and Baihehua also reached the daily limit up, indicating strong market interest in the sector [1] - Hongbaoli's trading volume reached 240 million yuan, with a turnover rate of 3.57%, highlighting its active trading status [1] Group 2 - The chemical industry is a fundamental sector of the national economy, with products widely used in construction, automotive, and electronics [2] - The performance of the chemical sector is closely linked to macroeconomic trends, reflecting the industry's sensitivity to economic conditions [2]