Tokyo Metro 9000 series
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The Tokyo Metro 9000 series is an electric multiple unit train type operated by the Tokyo subway operator Tokyo Metro on the Tokyo Metro Namboku Line in Tokyo, Japan, since 1991. Wikipedia
Car body construction: Aluminium
Car length: 20,000 mm (65 ft 7 in)
Weight: 25.7–33.5 t (25.3–33.0 long tons; 28.3–36.9 short tons)