Tool-joint tapered thread for drill string elements. Profile,dimensions, technical requirements
NORMA vydána dne 1.1.1997
Designation standards: GOST R 50864-96
Note: NEPLATNÁ
Publication date standards: 1.1.1997
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST