另外，PET瓶较之铝材价格更低。国际铝业协会（IAI）委托Wood Mackenzie在2021年的容器经济性测算中指出，在中国，PET瓶容器成本约0.071美元/升，而铝罐约0.197美元/升，每升差额约0.126美元。
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