Core Points - The successful completion of the "Longteng" shield machine's tunneling marks the full connection of the Guangxi Deep Sea Pipeline Project [1] - The project spans approximately 8 kilometers, with a 5-kilometer underwater shield section, making it the longest underwater shield tunnel pipeline project in China [1] - Upon completion, the project will address wastewater discharge issues for over 150 enterprises in the Guangxi Coastal Economic Development Demonstration Zone, promoting industrial upgrades and new development opportunities [1]