Schiaramento/annotazione:Hollow single marks in fastness Ìõõõ on freezing resistance of F25
Descrizione del marchio dettagliata:Product / serial production
ÎÊÄÏ code: 2693104
certificate: 010. 232. 2. Av. 3. 1868
is registered in: "Ìîññòðîéñåðòèôèêàöèÿ" 15. 07. 99
certificate validity interval: from 15. 07. 99 on 15. 07. 01
standard documents: Gost 530-95 "brick and rocks of ceramic.
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