Investment Rating - The report suggests a "Strong Buy" rating for the mechanical equipment sector, with a focus on companies with strong performance certainty in the T-chain [2][4]. Core Insights - The mechanical equipment sector has shown a decline of 1.17% compared to the Shanghai Composite Index's decrease of 0.25% during the week of June 9-13, 2025, ranking 21 out of 31 in the Shenwan first-level industry classification [4][8]. - The energy and heavy equipment sub-sector performed the best with an increase of 1.69% [4][9]. - The report highlights advancements in humanoid robotics, emphasizing the integration of cognitive intelligence and motion control, which is accelerating commercialization [4][24]. - The semiconductor equipment sector is expected to benefit from domestic manufacturers taking over overseas DDR4 production capacity, as major global suppliers are reducing their DDR4 output [4][26][28]. Summary by Sections Investment Recommendations - Focus on core companies with strong performance certainty in the T-chain: Top Group, Zhenyu Technology, Longsheng Technology [3]. - Capture investment opportunities in cleaning equipment driven by technology upgrades and low valuations: Shengmei Shanghai, Zhichun Technology, and Northern Huachuang [3]. Market Performance - The mechanical equipment sector's overall PE-TTM valuation decreased by 1.71% during the week, with laser equipment and energy heavy equipment showing the highest increases [16][21]. - The report lists the top five gainers and losers in the mechanical equipment sector, with Beikong Technology leading with a 61.09% increase [14][15]. Technological Advancements - Meta's V-JEPA 2 model enhances robots' understanding of the physical world, marking a significant breakthrough in cognitive robotics [4][24]. - The establishment of the first humanoid robot 4S store in Beijing aims to provide comprehensive lifecycle services, potentially transforming consumer service models [4][25]. Semiconductor Equipment Insights - The DDR4 market is experiencing a price surge due to major manufacturers exiting the market, creating opportunities for domestic suppliers to expand production [4][26][28]. - Recent bidding data indicates a robust activity in semiconductor equipment procurement, with multiple projects awarded in the past week [29][30]. Macro Data - The manufacturing PMI for May was reported at 49.5%, indicating a slight contraction, while the equipment manufacturing PMI was at 51.2%, suggesting expansion [33][35]. - The report notes a year-on-year increase of 22.8% in global semiconductor sales for April, with China's semiconductor sales up by 14.4% [41][43].