Thursday, December 9, 2010

[MW:8619] TIG

In TIG, how can Carbon di oxide be used?doesn't  it react with oxygen to give carbon monoxide and nitrogen to give cyanide??
 
Also, why is the tungsten elctrode alloyyed with thorium?
 
Why only Radon and not Xenon as the inertgas?

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[MW:34919] Welder qualification certificate

Dear All     anyone can share a format for welder certificate and card format        Thanks & Best Regards Saleem manhappulath Mob:+9665...