通光线缆：募投项目“高端海洋装备能源系统项目（一期）”已基本实施完毕，达到预定可使用状态

Group 1 - The company has a product line for aerospace high-temperature cables used in the aerospace field [2] - The fundraising project "High-end Marine Equipment Energy System Project (Phase I)" has been basically completed and is in a state of readiness for use [2]