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Anhydrous acid chromium free passivation solution for treating metal surfaces
Anhydrous acid chromium free passivation solution for treating metal surfaces
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机译:无水酸性无铬钝化液,用于金属表面处理
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摘要
Aqueous acid solutions for treating metal surfaces such as aluminum and galvanized steel are disclosed. The solutions are mixtures of organophosphates or phosphonates and chloride or fluoride. The treating solutions can be used in place of chromium treating solutions.
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