Longitudinally welded smooth tubes made of steels of grades 11 and 12. External diameter up to 152 mm. Dimensions
NORM herausgegeben am 28.5.1975
Designation standards: ČSN 425723
Classification mark: 425723
Catalog number: 6386
Publication date standards: 28.5.1975
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN