| 摘要 |
FIELD: construction. ^ SUBSTANCE: ceramic mass for beads fabrication contains the following components, wt %: clay 50.0 - 80.0, ground processing wastes of rock crystal and/or amethyst and/or smoky quartz, and/or morion, and/or citrine, and/or rose quartz 20.0 - 50.0. ^ EFFECT: resistance to chemical and mechanical exposure. ^ 1 tbl, 1 ex |
