| 摘要 |
FIELD: construction. ^ SUBSTANCE: tiled glazing includes clay, quartz sand, chalk stone, iron oxide, marganese black and container glass scraps. Components are joined at the following ratio of weight parts: clay 40-50; quartz sand 22-26; chalk stone 2-3; iron oxide 10-14; marganese black 12-16; container glass scraps 20-30. ^ EFFECT: environmentally safe glazing. ^ 1 tbl |
