[Nitrous gases in electric welding].
D004560:Electricity; D005740:Gases; D007221:Industry; D009584:Nitrogen; D009784:Occupational Diseases; D009790:Occupations; D014896:Welding
D005740:Gases; D009584:Nitrogen
INDUSTRY AND OCCUPATIONS; NITROGEN
Nitrosní plyny pri elektrosvárení.