TWI780245B

The present invention addresses the problem of providing a technology such as a pretreatment agent which is for chemical conversion treatment capable of forming a chemical conversion coating, and which can improve the corrosion resistance of a burr portion of an edge when a coating film is formed, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUZUKI, AMANE, FUKUSHI, HIDEKAZU
Format: Patent
Sprache:chi
Schlagworte:
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