Newly bought diesel locomotives made in China have come into use for commuter train service in Buenos Aires. This locomotive has its own type SDD7, named by its manufacturer Qishuyan Locomotive Works in China. Now we can see new engines appearing in front of Retiro Mitre, a station with around 100 years history, however, their original mission is for a completely different line, their appearance in Retiro Mitre is wrong but feels so right.
