宏德股份：公司目前为储能领域客户提供飞轮壳体、上端盖、下端盖、底座等相关零部件，相关产品收入占比较小

Group 1 - The company is currently providing components such as flywheel housings, upper covers, lower covers, and bases for clients in the energy storage sector [2] - The sales revenue and profit from these related products constitute a small proportion of the company's overall business revenue, indicating that they do not have a significant impact on the company's operational performance [2]