Group 1 - The core viewpoint is that China's commercial aerospace industry is experiencing significant growth, with the industry scale expected to reach 2.8 trillion yuan by 2025, representing a compound annual growth rate of over 26%, and a 180% increase compared to 2020 [1] - The upstream satellite manufacturing and rocket launch segments account for approximately 10% of the industry value, while the midstream ground equipment manufacturing and downstream satellite application services each account for about 45% [1] Group 2 - The commercial aerospace sector demands higher standards for testing equipment, covering all stages of satellite development, from design to mass production, with routine testing required even for individual satellites [2] - The testing dimensions have become comprehensive and specialized, including environmental adaptability, electromagnetic compatibility, communication performance, network collaboration, reliability, lifespan, and safety [2] Group 3 - Domestic companies are accelerating their catch-up with overseas counterparts, with significant potential for domestic substitution in the high-end scientific instrument sector, which has long R&D cycles and high technical barriers [3] - Major international players in the communication testing equipment industry include Keysight (USA), Rohde & Schwarz (Germany), and Anritsu (Japan), while domestic companies are making strides in closing the gap [3]