ผลต่างระหว่างรุ่นของ "ทองแดง"

 

== แหล่งข้อมูลอื่น ==

* [http://www.npi.gov.au/substances/copper/index.html National Pollutant Inventory – Copper and compounds fact sheet]

* [http://www.weldaloy.com/resource_center.php Copper Resource Page.] Includes 12 PDF files detailing the material properties of various kinds of copper, as well as various guides and tools for the copper industry.