Method of specifying the resistance of steel conductor rails.
NORMA vydaná dňa 16.7.1914
Designation standards: BS 68:1914
Note: NEPLATNÁ
Publication date standards: 16.7.1914
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: British technical standard
Kategória: Technické normy BS