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| 配方类型： |
METALS AND THEIR TREATMENT |
| 配方说明： |
Casting-Mold For Aluminum |
| 配方组成： |
Sand/135
Plaster/25
Water/65
Sawdust/5 |
| 配制方法： |
This sets in 24 hours. Dry at 80 to 90'C. for 2 hours and at 300'C.
for 1 hour. Pour in the metal slowly at the lowest possible temperature. |
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