制造业投资有所回落，把握自下而上机会

Investment Rating - The industry investment rating is "Positive" [2] Core Viewpoints - Manufacturing investment has slightly declined, but there are opportunities to capture from the bottom up [2] - The manufacturing PMI for May 2025 is 49.5%, showing a month-on-month increase of 0.5 percentage points, indicating a slight recovery in manufacturing activity [13][27] - Fixed asset investment in manufacturing from January to May 2025 has grown by 8.5% year-on-year, but this is a decrease of 0.3 percentage points compared to the previous four months [13][27] Company Summaries 1) Jiao Cheng Ultrasonic - Focuses on ultrasonic equipment and solutions, achieving revenue of 148 million yuan in Q1 2025, a year-on-year increase of 22.35% - Net profit attributable to shareholders reached 23.63 million yuan, up 2152.47% year-on-year, with non-recurring net profit at 19.77 million yuan, a growth of 1068.17% [3][14] 2) Zhenghe Industrial - Engaged in the R&D, manufacturing, and sales of various chain drive systems, with Q1 2025 revenue of 395 million yuan, a year-on-year increase of 6.32% - Net profit attributable to shareholders was 53.84 million yuan, up 100.09% year-on-year, and non-recurring net profit was 30.26 million yuan, a growth of 16.45% [4][15] 3) Lvtian Machinery - Main products include general power machinery and high-pressure cleaning machines, with revenue growth rates of 47.9%, 72.5%, and 50.1% for Q3 2024, Q4 2024, and Q1 2025 respectively - Net profit growth rates for the same periods were 24.1%, 55.9%, and 56.3%, indicating a performance turning point [5][16] 4) Sande Technology - Achieved revenue of 108 million yuan in Q1 2025, a year-on-year increase of 18.35% - Net profit attributable to shareholders was 28.07 million yuan, up 45.38% year-on-year, with non-recurring net profit at 27.35 million yuan, a growth of 51.23% [6][17] Industry Trends - The manufacturing sector is experiencing a slight investment decline, but there are positive indicators in specific segments such as process industries and individual stocks with strong performance [7][14] - The demand for industrial robots is increasing, with a production growth of 35.5% year-on-year in May 2025, reflecting a shift towards automation in manufacturing [49][51] - The excavator sales in May 2025 reached 18,202 units, a year-on-year increase of 2.1%, indicating resilience in the construction machinery sector despite some internal sales pressure [58]