配方类型：	CERAMICS AND GLASS
配方说明：	Low-Loss Ceramic Insulator (U.S. Patent 2,839,414)
配方组成：	Potters Flint/5.3 Calcium Carbonate/3.1 Wollastonite/60.2 Lead Bisilicate/16.5 Titanium Dioxide/2.2 Kentucky Old Mine No.4 Clay/12.7
配制方法：	Ball mill to pass a 325-mesh sieve, mix with water, form in the shape of a disk, dry at 230F., and fire at 2100F. in air, then kiln cool.

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