| 摘要 |
The invention relates to a roller-stressed component having a surface designed at least in regions as an iron oxide layer. The iron oxide layer comprises at least 99 weight % iron oxide in the form of a compound structure having the molecular formula Fe3O4 and a maximum of 0.5 weight % of free iron oxide having the molecular formula Fe2O3, not being part of the compound structure, and is designed to be liquid-tight. |
