东南网架：公司是一家集设计、制造、安装于一体的大型专业建筑钢结构企业

Group 1 - The company, Dongnan Network Framework, is a large professional architectural steel structure enterprise that integrates design, manufacturing, and installation [1] - The company's business primarily covers major national scientific facilities, schools, hospitals, sports venues, airport terminals, exhibition centers, and high-speed railway stations [1] - The company has extensive construction experience in the conference and exhibition center sector, having participated in numerous significant projects such as the National Exhibition and Convention Center and various international exhibition centers across different cities [1]