On the one hand, the price of crude rubber, the main raw material has increased 300 percents in total from the 2009.
一方面，2009年至今，轮胎的主要原材料天然橡胶的价格，已累计上涨了300%。
Rheological properties of ECO crude rubber, ECO gross rubber, NBR crude rubber and NBR gross rubber in various temperature were studied.
研究了氯醚橡胶(eco)、NBR生胶及其混炼胶在不同温度和较宽剪切速率下的流变性能。
Rheological properties of ECO crude rubber, ECO gross rubber, NBR crude rubber and NBR gross rubber in various temperature were studied.
研究了氯醚橡胶(eco)、NBR生胶及其混炼胶在不同温度和较宽剪切速率下的流变性能。
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