青龙管业：12月9日召开董事会会议

Group 1 - The core point of the article is that Qinglong Pipe Industry (SZ 002457) held its 20th meeting of the sixth board of directors on December 9, 2025, via telecommunication voting, discussing the proposal for the election of the board and nomination of independent director candidates [1] - For the first half of 2025, Qinglong Pipe Industry's revenue composition was as follows: non-metallic mineral products accounted for 88.83%, water conservancy technology services accounted for 11.15%, and other businesses accounted for 0.02% [1] - As of the report date, Qinglong Pipe Industry's market capitalization was 3.7 billion yuan [1]