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Contact and corrections

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Check a claim

Each guide identifies the sources used for its technical discussion. Follow the source beside a claim to check the original wording and its conditions. For a product question, use the contact details on that original publisher’s website; this publication does not provide equipment service or represent suppliers.

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Keep the article address, the passage in question, the date you read it and a primary source supporting the change. The editorial policy explains how factual statements, proposed trial checks and image limitations are distinguished.