Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 215
Vogel’s Composition Files.—
Оглавление| III | IV | V | |
|---|---|---|---|
| Copper | 57.0 | 61.5 | 73.0 |
| Tin | 28.5 | 31.0 | 19.0 |
| Zinc | 78.0 | — | 8.0 |
| Lead | 7.0 | 8.5 | 8.0 |
VI.—Another alloy for composition files is copper, 8 parts; tin, 2; zinc, 1, and lead, 1—fused under a cover of borax.
