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.