Quality ratings system. Construction. Facing of stone materials and natural stone blocks. Nomenclature of characteristics
NORMA vydána dne 1.7.1982
Designation standards: GOST 4.219-81
Publication date standards: 1.7.1982
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST