Core Viewpoint - Feirongda (300602.SZ) is actively involved in the photovoltaic inverter and energy storage device sectors, providing a range of products including die-cast housings, injection-molded housings, shielding sealing strips, heat sinks, composite cover plates, potting adhesives, axial fans, nano-crystal inductors, and liquid cooling solutions [1] Group 1 - The company offers various products applicable to photovoltaic inverters and energy storage devices [1] - Key clients in the photovoltaic energy storage industry include Company H, Greewat, and other significant customers [1]