德龙激光：公司为固态电池业务领域提供激光加工设备，暂未涉及电池壳、铝塑膜或液冷板

Group 1 - The company, Delong Laser (688170.SH), is involved in the solid-state battery sector by providing laser processing equipment [2] - The products offered by the company include insulation equipment for electrode sheets, dry electrode laser preheating, and ultrafast laser electrode sheet processing [2] - The company has not yet ventured into the production of battery shells, aluminum-plastic films, or liquid cooling plates [2]