国机精工：目前公司在国内航天轴承领域的市占率在90%以上

Group 1 - The core viewpoint of the article highlights that Guojijinggong (国机精工) holds over 90% market share in the domestic aerospace bearing sector [1] - The company produces specific products such as rocket fuel turbine pump bearings, satellite momentum wheel bearing assemblies, and satellite battery sailboard bearings [1] - The development of commercial aerospace is expected to provide new business growth opportunities for the company [1]