冠龙节能(301151.SZ)：产品主要应用于航空厂房、航空基地的供水及污水处理配套项目

Group 1 - The core product of the company is a series of water-saving valves, primarily used in urban water supply and drainage, water conservancy projects, and industrial applications [1] - In aviation-related scenarios, the company's products are mainly applied in water supply and sewage treatment projects for aviation factories and bases, including successful applications in wind tunnel facilities and auxiliary building circulation water systems [1]