汪国胜

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Track cleaning maintenance truck

李明华, 孟艳, 王亚军, 2012 .

A rail car cleaning brush to clean and maintain equipment

林琳, 李明华, 孟强, 2012 .

Cleaning brush device for track cleaning and maintaining vehicle

林琳, 李明华, 孟强, 2012 .

Device for wiping track

林琳, 李明华, 卢进军, 2012 .

A rail car cleaning and maintenance

李明华, 孟艳, 王亚军, 2012 .

Device for cleaning and maintaining rail

林琳, 李明华, 卢进军, 2012 .

A rail maintenance and cleaning device

林琳, 李明华, 卢进军, 2012 .

Track cleaning and maintaining vehicle

李明华, 孟艳, 王亚军, 2012 .

A kind of track cleaning maintenance cart

李明华, 孟艳, 王亚军, 2012 .