工程机械概念盘初走强，恒立钻具冲击涨停

Core Viewpoint - The engineering machinery sector is experiencing a strong initial performance, with several companies showing significant gains, particularly Hengli Drilling Tools reaching a limit-up price [1] Company Summaries - Hengli Drilling Tools is making a notable impact by hitting the limit-up price, indicating strong investor interest and confidence in the company's performance [1] - Other companies in the sector, such as Dahongli, Wuxin Tunnel Equipment, Shanhe Intelligent, China Railway Construction Heavy Industry, and Hongsheng Co., are also witnessing upward movement in their stock prices, reflecting a broader positive trend in the engineering machinery industry [1]