NA 021
DIN Standards Committee Iron and Steel
Standards
[Withdrawn]
DIN 17223-1
DIN 17223-1
Round Spring Steel Wire, Quality Specifications; Patented Drawn Spring Wire Made of Unalloyed Steels
Title (German)
Runder Federstahldraht, Gütevorschriften; Patentiert-gezogener Federdraht aus unlegierten Stählen