Category:A-Class Engineering articles
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This category contains articles that have been rated as "A-Class" by WikiProject Engineering. Articles are automatically placed in this category when the corresponding rating is given; please see the assessment department for more information.
|This is a maintenance category. It is used for maintenance of the Wikipedia project and is not part of the encyclopedia. It contains pages that are not articles, or it groups articles by status rather than content. Do not include this category in content categories.|