国产大飞机产业料将迎来发展契机；紧抓THB（特斯拉、华为、字节）主线

Group 1 - The domestic large aircraft industry in China is expected to enter a new stage of scaled industrial development, with major airlines signing significant orders for the C919 aircraft [1] - China’s domestic airlines, including Air China, China Southern Airlines, and China Eastern Airlines, have signed orders for 100 C919 aircraft, while HNA's subsidiaries have each signed for 30 aircraft [1] - The current self-sufficiency rate of China's large aircraft industry is less than 40%, but significant breakthroughs have been made in domestically produced civil engines [1] Group 2 - The C919's EU certification is anticipated to be finalized this year, and there are positive signals from the Southeast Asian market regarding the introduction of Chinese-made commercial aircraft [1] - The recovery of the civil aviation industry this year is expected to provide development opportunities for the domestic large aircraft industry, benefiting local supporting enterprises [1]