Coal briquettes. Method for the determination of width of the belt edge
NORMA vydána dne 1.7.1977
Designation standards: GOST 21291-75
Note: NEPLATNÁ
Publication date standards: 1.7.1977
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST