三友化工：公司有机硅产品主要包括二甲基硅氧烷混合环体、室温胶和高温胶等，不可直接应用于航空航天领域

Group 1 - The company, Sanyou Chemical (600409.SH), confirmed that its silicone products are not directly applicable to the aerospace field, despite being one of the few domestic companies that can provide aerospace-grade silicone materials [2] - The company's silicone product range includes dimethylsiloxane mixed rings, room temperature adhesives, and high-temperature adhesives, which have various downstream applications [2] - The downstream applications of the company's products are diverse, covering industries such as aerospace, robotics manufacturing, healthcare, construction, daily chemicals, and new energy [2]