| 摘要 |
<p>In the electroplated steel sheets for automobile use, the chipping-resistance, water-resistant adhesion, unpainted corrosion resistance, post-painted corrosion resistance, and resistance to secular exposure are improved by superimposing a chemical conversion layer (2) between electroplated layers (3, 4, 5) or between the steel substrate (l) and an electroplated layer (3, 4, 5).</p> |
