A member of staff examines a cargo of medical gloves in Shandong province before it leaves for Budapest, Hungary, in April. WANG KAI/XINHUA

A train loaded with medical equipment, including surgical face masks and protective gowns, departs Yiwu, Zhejiang province, for Madrid, Spain, last month to help in the fight against the COVID-19 pandemic. LYU BIN/FOR CHINA DAILY

A police officer checks the ID card of a cargo train driver at the China-Mongolia border on July 1. GUO PENGJIE/FOR CHINA DAILY

Containers filled with surgical masks are loaded onto a Russia-bound train in Jiangxi province in May. HU GUOLIN/FOR CHINA DAILY

Customs officers inspect boxes of protective goggles in Guangdong province before they are shipped to Kazakhstan in April. LIN WENJUN/FOR CHINA DAILY