配方类型：	SOAPS AND DETERGENTS
配方说明：	Rust Removal from Cement Patios
配方组成：
配制方法：	Dissolve one part sodium citrate in six parts of water, add six parts glycerin. Mix with powdered whiting to form a heavy paste. Spread a thick coating of the mixture on the stained area and allow to dry. Repeat treatment if necessary. Badly stained areas may require a week or more for complete removal. This mixture is also effective in removing stains on siding caused by rusty nails.

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