This category is within the scope of WikiProject Materials, a collaborative effort to improve the coverage of Materials on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MaterialsWikipedia:WikiProject MaterialsTemplate:WikiProject MaterialsMaterials articles
This category is within the scope of WikiProject Lists, an attempt to structure and organize all list pages on Wikipedia. If you wish to help, please visit the project page, where you can join the project and/or contribute to the discussion.ListsWikipedia:WikiProject ListsTemplate:WikiProject ListsList articles
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