Group 1 - The core viewpoint is that the infrastructure industry chain is experiencing a significant increase in prosperity due to ongoing "stabilizing growth" policies, leading to a new round of large-scale equipment updates [1] - As of February 3, engineering machinery ETFs (516250), machinery ETFs (159886), and building materials ETFs (516750) have all seen notable gains, with increases of 6.02%, 3.76%, and 3.29% respectively, indicating a clear recovery trend [1] - Since 2026, the pace of major transportation, energy, water conservancy, and municipal engineering projects has accelerated, enhancing expectations for physical workload formation [1] Group 2 - Support policies for industrial equipment updates, renovation of old production lines, and domestic substitution of high-end equipment are continuously being implemented, creating new demand space for the machinery equipment industry [1] - The dual drive of "infrastructure investment support + manufacturing equipment upgrade and expansion" is becoming the core logic for improving expectations in the sector [1] - Research institutions believe that the engineering machinery industry is likely to experience a resonance of domestic demand recovery and renewal cycles, while the building materials sector is expected to benefit from improved demand due to the recovery of project commencement [1]