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配方类型: METALS AND THEIR TREATMENT
配方说明: Foundry Sand Core and Mold (U.S. Patent 2,765,507)
配方组成: Kerosene/0.25-0.75
Water-Soluble Polyacrylic Acid/0.3-1
High Grade Foundry Sand/To make 100
Moisture/2.5-5
配制方法: Mold and air-oven dry at 200 to 350F. for 10 to 30 minutes. This gives a high hot strength core or mold.

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