| 摘要 |
FIELD: building production industry. ^ SUBSTANCE: claimed mass includes (mass %): clay 25-30; kaolin 14-18; quartz sand 10-12; faience smithereens 16-20; nepheline-syenite 4.5-5.5; dolomite 2-4; calcined soda 0.1-0.2; liquid glass 7.3-8.4; lime 6-8; pumice 3-8. ^ EFFECT: article of increased strength. ^ 1 tbl |
