اين چند آدرس رو ببين
http://en.wikipedia.org/wiki/Betts_electrolytic_process
http://en.wikipedia.org/wiki/Betts_electrolytic_process
http://www.metsoc.org/virtualtour/processes/zinc-lead/leadflow.asp
http://www.metsoc.org/virtualtour/processes/zinc-lead/leadflow.asp
اين مقاله هم شايد به دردتون بخوره