[TheForge] thoriated tungsten health hazards

[Phil Rosche]

I got these from my welding instructor buddy:

http://www.pro-fusiononline.com/tungsten/radioactivity.htm

http://www2.thefabricator.com/Articles/Welding_Article.cfm?ID=511

http://www.aws.org/technical/facts/FACT-27.PDF



		
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