STN 451320 (451320)

Deep hole drilling. Combined angular rods and driving (casing) heads

STANDARD published on 1.1.1955

The information about the standard:

Designation standards: STN 451320
Classification mark: 451320
Catalog number: 63571
Note: WITHDRAWN
Publication date standards: 1.1.1955
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Category: Technical standards STN