8月8日乙二醇与涤纶poy商品比价指数为104.49，与昨日持平，较周期内高点148.11点（2015-06-30）下降了29.45%，较2019年07月07日低点75.10点上涨了39.13%。(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，当天乙二醇参考价为5500.00,自2021/8/1起，8天陆续下降了2.077%。当天下游商品涤纶poy参考价为7844.44。
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