It is reseached that the process of catalytic cross-bridging in synthetic ketonic residuum resin and obtained that the utility resin.
酮渣油是
产中的业废料,经催
制成树脂,于经济和环保方面都有意义。
想词It is reseached that the process of catalytic cross-bridging in synthetic ketonic residuum resin and obtained that the utility resin.
酮渣油是产中的业废料,经催制成树脂,于经济和环保方面都有意义。
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