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Polymer matrix braking materials for railway vehicles
huang kai-bing 1 ; du zhi-yuan 1 ; chen xian-hong 1 ; fan ze-fu 1 ; zhou sheng 2 ; li ya-tao 2 (1.material science college of hunan university; changsha410082; ch ina; 2.zhuzhou electric locomotive widege s&t co.; ltd.; zhuzhou41200 1; china)
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