| 摘要 |
<p>FIELD: construction. ^ SUBSTANCE: ceramic mass includes clay, crushed tiles, nepheline concentrate and crushed silicate brick, ground and sifted through sieve No. 0.63, their mass fractions being as follows, wt %: clay - 84.5-88.0; crushed tiles - 1.0-1.5; nepheline concentrate - 8.0-10.0; specified crushed brick - 3.0-4.0. ^ EFFECT: reduced prime cost of items. ^ 1 tbl</p> |
