The MBTA on Tuesday released footage of the new MBTA Orange Line train cars in action.
The short video from the MBTA showed pilot train cars rolling down a track in Changchun, China.
CRRC, which is building a $95 million factory in East Springfield, is based in Changchun.
Hundreds of train cars are expected to be made at the facility in Springfield. The company plans to build subway cars for Los Angeles and Philadelphia.