Passengers get on the train from Jilin to Tumen in Northeast China's Jilin province. [Photo by Qu Xiaoxi for chinadaily.com.cn]

High-speed trains in China can usually impress people with the rapid development, but some older, slower trains are still running around the country to serve passengers with different demands.

Traveling at a speed of about 80 kilometers per hour, a pair of old-fashioned low-speed trains, painted in green, has provided services for residents in Northeast China's Jilin province for 56 years.