부산도시철도 2호선 21편성 IGBT 개조차 덕천역 양산행 진입영상
편성:221편성 소자:우진산전 IGBT Busan transportation corporation line 2 221 train Wojin IGBT engine deokcheon station approaching video Train:221 train Engine:Wojin IGBT engine Busan transportation corporation line 2 221 tren Wojin IGBT engine deokcheon station pupunta video
