10月31日丙烯与丙烯酸商品比价指数为61.65，与昨日持平，创下周期内的历史新低，较2020年04月13日高点218.56点下降了71.79%。(注：周期指2012-01-01至今)
注：本站定义，比价指数为周期内上下游商品每日价格之比的定基指数化结果。
据本站数据，当天丙烯参考价为7950.67,自2021/10/13起，19天陆续下降了17.969%。当天下游商品丙烯酸参考价为18800.00,自2021/10/25起，7天陆续下降了1.571%。
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