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配方類型：	METALS AND THEIR TREATMENT
配方說明：	Insulation for Magnets (U.S. Patent 2,501,349)
配方組成：	85% Phosphoric Acid/40 Distilled Water/50 29% Hydrosilicofluoric Acid/50
配制方法：	The magnetic body is coated with this solution and heat treated at 400 to 1200F. This coating is hard, adherent, and of high ohmic resistance.

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