C/B The C/B's research direction is: the larger size of carbon black, the higher C/B structure;

炭黑炭黑研究方向是：较大的炭黑粒径，较高的炭黑结构；

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C/B The C/B's research direction is: the larger size of carbon black, the higher C/B structure;

炭黑炭黑研究方向是：较大的炭黑粒径，较高的炭黑结构；

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