Solid vs Stranded Copper Wire

Challenges of Copper Shortages in Manufacturing
http://o98065hq.bget.ru/index.php?action=profile;u=301333

The world’s top five largest copper mining companies by production
http://boogystyle.free.fr/Forum/viewtopic.php?p=56939#56939

How is copper cathode made? Drilling down into copper production emissions
http://portal.westcoastbible.org/discussion/viewtopic.php?f=18&t=654762

Does Copper Conduct Heat?
http://rpg.six168.com/viewthread.php?tid=34113&page=1&authorid=56503

What's Driving Copper's Rally?
http://ghost.776.tw/viewthread.php?tid=655215&extra=

Copper in History – Its Uses During Antiquity and Middle Ages
http://pangyai.go.th/forum/suggestion-box/144697-sd-i-di-rjad-s-n-i