On July 21, freight train X80442, carrying containers loaded with automobiles and auto parts, departed Yantai Port. This marked the successful launch of China's first cross-border sea-rail-road freight train under the one-bill coverage system. The service adopts a seamless intermodal transport model combining maritime, rail and road transportation. The goods are shipped by sea from Incheon, Republic of Korea, to Yantai Port, transported directly by rail to Kashgar and then carried out of China by customs-supervised trucks. Five days shorter than under the conventional transport model, the entire journey takes 12 days,effectively reducing logistics costs for enterprises and significantly improving operational efficiency and reliability.