化学配方数据库
| 配方类型： | INKS AND MARKING COMPOUNDS |
| 配方说明： | Solid Writing Ink (Japanese Patnet 3366 (1952)) |
| 配方组成： | Iron Sulfate/4 Tannic Acid/3 Mix, dry and mill with 50% Alcohol/16 Sulfamic Acid/8 Pyrogallic Acid/1 |
| 配制方法： | Mix, mold, and dry. |
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