STN 420257 (420257)

Deep-hole drilling. Drill rod sets for rotary core deep-hole drilling. Technical delivery terms

NORM herausgegeben am 1.5.1954

The information about the standard:

Designation standards: STN 420257
Classification mark: 420257
Catalog number: 61418
Note: UNGÜLTIG
Publication date standards: 1.5.1954
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN