Friday, March 5, 2010

[MW:4428] colour of welding

Hi there,
I have a query related to the colour of welding.Sometimes the colour
of welding comes out bluish and sometimes yellowish blue .Is this a
kind of welding defect or anything else?
Rohit Rawat,
Asst. Engineer(QA),
Kirby Building Systems,Haridwar.

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