对SBR17 21基本性能及对轿车轮胎胎面胶性能的影响进行研究，并与SBR1712进行比较。
The basic properties of SBR1721 and their effects on performance of tread compound of PCR tire were investigated and compared to SBR1712.
特殊的复合胎面胶配方设计，耐磨耐切割性能好。
The specially designed composed formulation provides a good anti-cutting performance.
研究了预处理聚酯短纤维用量、取向对其增强胎面胶混炼特性及物理机械性能的影响。
The influences of the amount and orientation of pretreatment polyester short fiber on the physical properties of the reinforced tread and its mixing characteristics were investigated.
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