化学配方数据库
| 配方类型: | METALS AND THEIR TREATMENT |
| 配方说明: | Foundry Mold Coating (U.S Patent 2,755,192) |
| 配方组成: | Water/To suit Bentonite/3 lb. 6 oz. Cork Dust/8 lb. 2 oz. sodium Silicate (40 Be.)/3.5 qt. Casein Glue/1 lb. 14 oz. |
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