博敏电子：公司PCB及陶瓷衬板产品已有部分应用于低轨卫星、航空航天等领域，相关收入占公司整体收入较小

Group 1 - The company has engaged in collaboration with the Aerospace Second Academy in 2022, indicating a potential interest in commercial aerospace concepts [2] - The company's PCB and ceramic substrate products have been partially applied in low Earth orbit satellites and aerospace fields, although the related revenue constitutes a small portion of the overall income [2]