该方法可以改善具有转化层的金属、特别是含锌金属表面的腐蚀保护性能。
The method improves anticorrosive protection of metal, surfaces, particularly metal surfaces containing zinc, provided with conversion layers.
第三步(酸洗)：去除金属表面的自由离子、金属残渣、氧化物和其他腐蚀产物。
The Third Step (Acid Wash) is to remove free iron, metallic residues, oxides, and other corrosion products from the surface of the metal.
金属表面的涂漆防腐蚀欲达到预期的良好效果，首先是其材料的选择，其次是具体施工工艺。
The painting anticorrosive metal surface to achieve good expected effect, the first is the choice of materials, the second is the concrete construction technology.
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