A conceptual design and cost study was made by tva for epa in 1968 . 1968年由TVA为EPA做了轮廓设计和成本研究。
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A conceptual design and cost study was made by tva for epa in 1968 1968年由tva为epa做了轮廓设计和成本研究。
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The specially designed tread compound formulation and the balance outline design by the computer offers this tire a better abrasion resistance and stable rideability 特别设计胎面胶配方和采用计算机优化、平衡轮廓设计，赋予该款轮胎良好的耐磨性能和行驶稳定性。
