Refractory products and Silika, Electric-silika:

1. Silika refractory products: GOST 4157-79
• DN № 5-102
2. Silika refractory products for open-hearth furnace liniking: GOST 4157-79
• DM № 1-36
3. Light-weight termally insulating products: GOST 3910-75
• DS № 1-42
4. Silika refractory products for air-preheater and blast furnace hot air ducts lining: GOST 20901-75
• DB № 1-84
5. Refractory products for electric furnace lining: DSTU 2343-94 (GOST 1566-96)
• ED № 2-18