银龙股份：公司产品主要应用于铁路、水利等领域

Group 1 - The core viewpoint of the article is that Yinlong Co., Ltd. focuses on sectors such as railways, water conservancy, bridges, highways, and new energy, and does not engage in the aerospace sector [1] - Yinlong Co., Ltd. holds a 20% stake in Shaanxi Aviation Hard Alloy Tool Co., Ltd., which specializes in the research, production, and service of hard alloy materials and cutting tools, primarily serving the aerospace, aviation, engine, automotive, high-speed rail, and steam turbine industries [1] - The company emphasizes its commitment to deepening existing business operations and actively exploring emerging markets to lay a solid foundation for achieving better performance [1]