Crushed natural stone for railway ballast. Specifications
NORMA vydána dne 1.1.1986
Designation standards: GOST 7392-85
Note: NEPLATNÁ
Publication date standards: 1.1.1986
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST