Initiated in 2011, the China-Europe rail transport service is considered a significant part of the Belt and Road Initiative to boost trade between China and countries participating in the program. (Photos: Xinhua)

Amid the coronavirus pandemic, the service remained a reliable transportation channel as air, sea and road transportation have been severely affected.

The freight trains have also been playing a crucial role in helping with the fight against the pandemic in Europe, sending massive quantities of medical supplies such as face masks and goggles.

Aerial photo taken on May 26, 2020 shows a China-Europe freight train carrying mechanical accessories, fabrics and solar photovoltaic products bound for Hanoi of Vietnam leaving a logistic hub in Hai'an, east China's Jiangsu Province.

Workers load a container onto a train at Urumqi China-Europe Railway Express Hub in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, March 12, 2020.

A policeman checks an outbound China-Europe freight train at Horgos Pass in northwest China's Xinjiang Uygur Autonomous Region, April 20, 2020.

Combo photo shows a China-Europe freight train carrying 294.42 tons of anti-epidemic supplies bound for Belgrade of Serbia preparing to depart from Wujiashan railway container center station in Wuhan, central China's Hubei Province (top, photo taken on May 9, 2020 by Xiao Yijiu) and the China-Europe freight train arriving in Belgrade, Serbia (bottom, photo taken on May 26, 2020 by Shi Zhongyu).

Li Ying (L), staff member with Haicang Station of China Railway Nanchang Group Co., Ltd. checks medical supplies as well as electronic devices and clothes that will be loaded onto a China-Europe freight train bound for Hamburg of Germany at Haicang Station in Xiamen, southeast China's Fujian Province, April 25, 2020.

China-Europe freight train X9202 loaded with cars, accessories, food and clothes bound for Ulan Bator of Mongolia prepares to leave a railway station in north China's Tianjin Municipality, May 20, 2020.