Recently, with the final layer of gravel backfill completed, the OKet A&Z 3DFF® double-wall tank was successfully installed at a gas station in Zhengzhou, Henan. This installation not only highlights the efficiency, convenience, and safety advantages of the 3DFF® double-wall tank, but also provides a practical reference for fuel storage at gas stations, reinforcing the foundation for safe operations and environmental sustainability at the site.