688048，301005，20%涨停！这一板块再度走强

Group 1 - The commercial aerospace sector continues to show strong performance, with several companies experiencing significant stock price increases [1] - Changguang Huaxin and Chaojie Co. both reached a 20% limit up, indicating strong investor interest [1] - Longzhou Co. achieved a consecutive three-day limit up, reflecting sustained momentum in the market [1] Group 2 - Other companies such as Yongding Co., Shanghai Port Bay, Tianjian Technology, and Aerospace Science and Technology also reached their daily limit up, showcasing a broad rally in the sector [1]