
Glossary of mining terms. Shafts and associated equipment.
NORMA vydaná dňa 30.8.1967
Designation standards: BS 3618-9:1967
Note: NEPLATNÁ
Publication date standards: 30.8.1967
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS