The Tobu 9000 series (東武9000系, Tōbu 9000-kei) is a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan since 1981.
The Tobu 9000 series (東武9000系, Tōbu 9000-kei) is a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan since 1981. (en)