商业航天概念震荡走强，航天发展封涨停

Group 1 - The commercial aerospace sector is experiencing a strong upward trend, with notable stocks such as Aerospace Development hitting the daily limit up [2] - Chaojie Co. has seen an increase of over 14%, indicating significant investor interest [2] - Other companies in the sector, including Srey New Materials and Leike Defense, have also reached their daily limit up, reflecting a broader positive sentiment in the market [2]