PE、PP、PVC、PET、EPS、ABS、PA的识别PE、PP、PVC、PET、EPS、ABS、PA这些中文名是什么应怎样认识这些 我想认识一下这些燃烧有什么性质吗谢谢

来源:学生作业帮助网 编辑:作业帮 时间:2024/12/01 08:42:24
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