Double tube core barrels for exploration drilling. Types and main parameters
NORMA vydána dne 1.1.2002
Designation standards: GOST R 51776-2001
Publication date standards: 1.1.2002
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST