A worker conducts welding operation at a steel processing factory for the capacity expansion project of the Jiamusi-Tongjiang Railway in northeast China's Heilongjiang Province, March 29, 2025. Recently, the Jiamusi-Tongjiang Railway in Heilongjiang has resumed its construction on capacity expansion upgrade. The capacity expansion project, spanning a total length of 258.25 kilometers, is expected to enhance the railway's train handling capacity by three times. Upon completion, the Jiamusi-Tongjiang Railway will further meet the needs of the China-Europe freight train services in Tongjiang Railway Port. (Xinhua/Wang Song)