宇瞳光学(300790.SZ)：未涉及消防设备领域

Core Viewpoint - The company Yutong Optical (300790.SZ) primarily focuses on optical lenses and optical components, which are utilized in various sectors including security, automotive, smart home, and consumer electronics, and does not engage in the fire safety equipment sector [1] Group 1 - The main products of the company are optical lenses and optical components [1] - The applications of these products span across security, automotive, smart home, and consumer electronics industries [1] - The company has explicitly stated that it does not involve itself in the fire safety equipment field [1]