東武20000系・20050系を中心に掲載しています。
Replacing Series 2000, Tobu 20000 and 20050 has been used on the Isesaki Line and Tokyo Metro Hibiya Line since 1988. They have 18 m bodies with three doors per side, which is shorter than the Japanese standard 20 m body. Some cars have five doors per side to shorten stopping time at stations.