The application of alkyl dithiophosphate accelerator in NR based tread compound was investigated.
研究烷基二硫代
促进剂在NR胎面胶中的应用。
The application of alkyl dithiophosphate accelerator in NR based tread compound was investigated.
研究烷基二硫代促进剂在NR胎面胶中的应用。
The back tyre tread is worn a little.
后车胎胎面有点磨损。
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