[Line 6 train on Line 7] Seoul Metro 6000 Series (640): Sangbong to Gunja.

Date taken: 19/3/26 2 Seoul Metro 6000 Series (sets 640 & 641) were temporarily transferred to Line 7 in 2012 due to severe overcrowding on Line 7 and the extension of Line 7 to Incheon City. They are expected to return to Line 6 soon. Filmed with iPhone 17 Pro Max. For more Korea train videos:    • Korea/韓国/대한민국 🇰🇷   For more trains with Mitsubishi propulsion:    • 三菱　電車走行音 미쓰비시 Mitsubishi/MELCO train motor...