SIASUN(SZ:300024) Zhong Guo Neng Yuan Wang·2025-12-24 02:04Industry Overview - The mechanical equipment industry has increased by 48.96% from the beginning of 2025 to November 30, 2025, outperforming the CSI 300 index, which rose by 15.04%, resulting in a relative return of 33.92%, ranking 7th among 31 primary industries [1] - Demand is under pressure, particularly in external markets, as indicated by the decline in manufacturing PMI and shrinking export orders, leading to an "active destocking" cycle [1] - Despite macroeconomic fluctuations, the structural trend of industrial upgrading is expected to continue driving the industry towards high-end and intelligent development [1] Growth Tracks Humanoid Robots - Investment logic indicates a reversal from a low point, with clear bottom characteristics; the industry is approaching a critical mass for mass production both domestically and internationally [2] - Investment suggestions include focusing on "certainty" and "new technologies," with recommended stocks being Hengli Hydraulic, Sanhua Intelligent Control, Lude Harmony, Dongmu Co., Haichang New Materials, and Lixing Co. [2] Gas Turbines - The core driving force is the historical opportunity created by the power gap in North America; AI computing power is igniting an "arms race" in electricity [3] - Investment suggestions focus on the complete machine segment (dominated by foreign capital) and core component segments (domestic support), with recommended stocks including Dongfang Electric, Shanghai Electric, Jereh, Yingliu, Haomai Technology, and Liande [3] Liquid Cooling - The core driving logic shifts from "air cooling limits" to "liquid cooling necessity," driven by the exponential growth in AI chip power consumption [4] - Investment suggestions include short-term focus on cold plate volume and long-term on technological changes and domestic replacements, with recommended stocks being Invec, Shenling Environment, Highland, Tongfei, Feirongda, Zhongshi Technology, and Juhua [4] Cyclical & Overseas Tracks Engineering Machinery - The core logic includes domestic demand recovery driven by policy support and renewal cycles, alongside significant growth potential in overseas exports [5] - Investment suggestions focus on leading manufacturers with global layouts and improved profitability, with recommended stocks including Sany Heavy Industry, XCMG, Zoomlion, LiuGong, Shantui, Hangcha Group, Anhui Heli, and Zhejiang Dingli [5] Mining Machinery - Investment logic highlights the global capital expenditure upturn and the shift from "import dependency" to "self-control," with significant growth potential [6] - Investment suggestions include short-term focus on equipment updates driven by global mining capital expenditure recovery and long-term focus on leading Chinese companies transitioning from equipment manufacturers to solution providers, with recommended stocks including XCMG, Zoomlion, Beifang, Shantui, and others [6] Investment Recommendations - The mechanical sector maintains a "recommended" rating, with aggressive investment directions in humanoid robots and AI infrastructure (gas turbines + liquid cooling) [7] - Stable investment directions include engineering machinery and mining machinery, characterized by low valuations and visible earnings growth [7]