Weldox:the only clue I can give you is that it seems to be the brand name of some product. Whose, I don't know.
Give a phone call to a reputable supplier of welding material near you and ask him. If he sells all kind of welding material, he should know.
Giovanni S. Crisi
Sao Paulo - Brazil

Try this web site they have lots of info on weldox materialhttp://www.oxelosund.ssab.se/english/products/weldox/weldoxdatasheet.htm