杰瑞股份：公司从事的主要业务包括高端装备制造、电力业务、油气工程及技术服务等，暂不涉及航天领域

Group 1 - The company, Jerry Co., primarily engages in high-end equipment manufacturing, power business, oil and gas engineering and technical services, oil and gas field development, and renewable energy and recycling, but does not involve in the aerospace sector [2] - An investor inquired whether the company's gas turbine technology could be used for manufacturing recyclable aerospace engines [2] - The company confirmed that it currently does not operate in the aerospace field [2]