机械行业行业月报：7月挖机内销持续改善，静待行业筑底回升

        30% 25% 20% 15% 10% 5% 0% -5% -10% -15% -20% -25% 23-01 23-02 23-03 23-04 23-05 工程机械指数 23-06 23-07 23-08 23-09 23-10 23-11 23-12 24-01 24-02 沪深300 24-03 24-04 24-05 24-06 24-07 24-08                 投资评级