Core Viewpoint - The G2 section of the Guangzhou-Shenzhen Expressway expansion project has commenced steel box girder manufacturing, marking the full production phase for this critical infrastructure project in the Guangdong-Hong Kong-Macao Greater Bay Area [1] Group 1: Project Overview - The Guangzhou-Shenzhen Expressway is a vital part of the national expressway network, specifically the Beijing-Hong Kong-Macao Expressway (G4) and the Shenyang-Haikou Expressway (G15), and is recognized as a "golden corridor" in the region [1] - The key line of the project, the elevated bridge from Taiping to Wudianmei, involves a steel structure manufacturing volume of 72,000 tons, which is being undertaken by China Railway Shanhaiguan Bridge Group [1] Group 2: Technological Innovations - The project team employs CNC cutting technology to ensure precision in part dimensions, automated assembly, and intelligent welding technology to guarantee assembly accuracy and welding quality [2] - Laser technology and AI vision technology are integrated into the manufacturing process, enhancing performance across multiple manufacturing stages, including weld seam recognition and coating inspection [2] - The implementation of a digital welding management system and real-time information exchange during the manufacturing process aims to improve automation, digitization, and intelligence in the production of bridge steel structures [1][2] Group 3: Commitment to Quality - The company emphasizes strict quality control across production, technology, and project timelines to deliver a high-quality outcome for the Guangzhou-Shenzhen Expressway expansion project [2] - The project aims to contribute to the development of modern transportation infrastructure that is convenient, efficient, green, economical, and safe, supporting the Greater Bay Area and the national transportation strategy [2]