| 摘要 |
<p>The product is immersed in a bath of zinc containing from 24 to 80% of aluminium and optionally up to 5% of silicon and to which there has been added at least one element chosen from alkaline-earth elements (Be, Mg, Ca, Ba, Sr), the overall content of these elements being between 0.005 and 0.5% by weight of the bath, and from the rare earths (La, Ce, Pr, Nd), the individual content of the latter being between 0.001 and 0.5% by weight of the bath.</p> |
