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一元硬币由什么构成
更新时间： 2020-09-22 00:00:00  

1、一元硬币的金属成分是镍钢合金；

2、五角的是黄铜合金；

3、一角的旧版是铝钢合金，现在新发行的也是镍钢合金。

关键词： 一元 硬币 什么 构成

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