| 配方类型： |
METALS AND THEIR TREATMENT |
| 配方说明： |
Cleaning Stainless Steel |
| 配制方法： |
The stain is removed by immersion for a few minutes in a solution of equal volumes of hydrochloric acid and water, at room temperature without any noticeable attack of the surface. It is suggested that, after the stain is removed, the fittings be passivated in the conventional nitric acid-dichromate bath. |
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