Group 1 - The company Ruike Laser (300747.SZ) has confirmed its products are involved in the photovoltaic market, specifically applicable to the processing of perovskite batteries, BC batteries, and TOPCon batteries [2] - The company has established stable sales in the photovoltaic sector, indicating a positive market presence [2] - Investors are encouraged to refer to the company's announcements for specific operational data [2]