[The concept of 3D printing strengthened in early trading, and Sikan Technology and Yangtze Materials both hit the daily limit.] On September 7, the concept of 3D printing strengthened in early trading. Sikan Technology and Yangtze Materials hit the daily limit, and Jialian Technology, Nengzhiguang, Hisun Materials, and Huashu Hi-Tech followed suit. According to news, on September 4, Beijing time, OpenAI released GPT-6 Astra. The computer team of Huafu Securities is optimistic about the application of GPT-6 Astra in the field of 3D modeling. AI applications further extend from digital content generation to spatial understanding and physical world interaction. World Generation may become an important industry catalytic direction after Coding, Al4S and Work.