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![Xinhua Headlines: From southern coast to snow mountains, freight train sends butter to Tibet](137810716_15497894353091n.jpg)
Wang Gang closes a door of the 7220190 refrigerator train at the Xili Railway Station in Shenzhen, south China's Guangdong Province, Jan. 19, 2019. (Xinhua/Ding Le)
Wang Gang closes a door of the 7220190 refrigerator train at the Xili Railway Station in Shenzhen, south China's Guangdong Province, Jan. 19, 2019. (Xinhua/Ding Le)