Talk:Betts electrolytic process

External links modified
Hello fellow Wikipedians,

I have just modified 1 one external link on Betts electrolytic process. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20061006210829/http://www.epa.gov/epaoswer/other/mining/minedock/id/id4-bis.pdf to http://www.epa.gov/epaoswer/other/mining/minedock/id/id4-bis.pdf

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at ).

Cheers.— InternetArchiveBot  (Report bug) 03:51, 1 November 2016 (UTC)