crown 外胎两胎肩之间的整个部位，包括胎面、缓冲层(或带束层)和帘布层等。
研究加工助剂ZD 2在载重斜交轮胎胎冠胶和肩垫胶配方中的应用效果。
The application of processing aid ZD 2 in the crown and shoulder pad compounds was investigated.
试验对比中乙烯基聚丁二烯橡胶(MV BR)和BR基本物理性能和在胎冠胶中的应用效果。
The physical properties of medium-vinyl butadiene rubber (MVBR) and its application in crown compound of bias truck tire were experimentally compared to those of BR.
分析全钢载重子午线轮胎胎冠、胎侧、胎肩和胎圈部位外观明疤的产生原因，并提出解决措施。
The causes for the appearance defects on crown, shoulder and bead areas of BTR tire were analyzed and their countermeasures were proposed.
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