配方类型：	METALS AND THEIR TREATMENT
配方说明：	Bright Dip for Zinc Alloys (U.S. Patent 2,904,413)
配方组成：	Hydrofluoric Acid/1.0-8 Chromic Anhydride/6.5-20 Water/To make 100 Nitric Acid/2.7-15

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