Railway vehicle

The utility model relates to a railway vehicle. The tread of each wheel of the railway vehicle is a rough surface with texture in two crossed direction, or the texture of the tread has no direction, or the tread is raised in the shape of fine grains. The center pins of steering frames which are comp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YANG ZHIGUAN
Format: Patent
Sprache:eng
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