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| 配方类型： |
INKS AND MARKING COMPOUNDS |
| 配方说明： |
Temperature-Recording Crayons or Pencils |
| 配方组成： |
Methylene Blue/0.40
Beeswax (M.P. 70'C.)/3.85
Paraffin Wax (M.P. 58'C.)/19.15
Zinc Oxide/19.15
Stearic Acid (M.P. 50'C.)/57.45 |
| 配制方法： |
This melts at 50'C. |
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