配方类型：	METALS AND THEIR TREATMENT
配方说明：	Solder Brightener
配方组成：
配制方法：	fluoboric acid gives better results than hydrochloric acid in this type of bright dip. Formula consists of 13 oz/gal each of 48% fluoboric acid solution and thiourea. Addition of a nonionic wetting agent improves the action of the bath, which is used at about 120-130F, for 1-3 minutes.

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