这是墨西哥瓜纳华托州的邮政编码分类。
在瓜纳华托州内，很多公司在生产过程中排放金属，对环境造成一定污染；
Within the state of Guanajuato, many companies were releasing metals in their production processes, thus, generating some pollution;
在瓜纳华托州内，很多公司在生产过程中排放金属，对环境造成一定污染；
Within the state of Guanajuato, many companies were releasing metals in their production processes, thus, generating some pollution;
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