Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 250
Plates For Engraving.
Оглавление—I.—Lead, 84 parts; antimony, 16 parts.
II.—Lead, 86 parts; antimony, 14 parts.
III.—Lead, 87 parts; antimony, 12 parts; copper, 1 part.
IV.—Lead, 81 parts; antimony, 14 parts; tin, 5 parts.
V.—Lead, 73 parts; antimony, 17 parts; zinc, 10 parts.
VI.—Tin, 53 parts; lead, 43 parts; antimony, 4 parts.
Hard lead is made of lead, 84 parts; antimony, 16 parts.
