In June 2019, the aviation fuel pipeline project for the apron expansion of the Yanli District Air Force Test Flight Center was successfully completed. The project supported the expansion of the East Apron and further improved the supporting infrastructure for aviation fuel transportation.

The construction included an additional 0.9-kilometer steel pipeline with a diameter of 273 × 8 mm, involving a total of 120 welded joints. The steel pipe adopted external 3PE anti-corrosion coating, while the internal surface was prefabricated with HT515 special anti-corrosion coating to ensure long-term durability and operational reliability.

The pipeline was buried at a depth of 2.5 meters, meeting the strict technical and safety requirements of the project environment. With its specialized anti-corrosion design and precise construction standards, the project provided strong support for the safe and stable operation of the aviation fuel supply system.

The successful completion of this project once again demonstrated the reliability of advanced pipeline anti-corrosion solutions in specialized industrial and military-support infrastructure applications.