Reinforced concrete ribbed floor slabs of 300 mm depth for buildings and structures. Specifications
NORMA vydaná dňa 1.1.1988
Designation standards: GOST 21506-87
Note: NEPLATNÁ
Publication date standards: 1.1.1988
The number of pages: 88
Approximate weight : 295 g (0.65 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST