填空题：离子交换树脂由于制造工艺的不同，使树脂内部形成不同的孔型结构，常见的产品有（）树脂和（）树脂。

题目内容：
离子交换树脂由于制造工艺的不同，使树脂内部形成不同的孔型结构，常见的产品有（）树脂和（）树脂。
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分类：化工总控工考试  题型：填空题
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