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14k金是什么意思 百度知道: Revision history

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11 November 2025

  • curprev 15:3715:37, 11 November 2025 JaniMattingly8 talk contribs 3,591 bytes +3,591 Created page with "<br><br><br>我們常常聽到18K金,但什麼是18K金呢? 18K金是75%的黃金(Gold,化學符號Au),與其他25%的貴金屬結合而成,如銀、銅、鎳等組合而成的合金。 18K金的印記為18K、AU750或G750,通常標記在戒指的內側。 Buy Tramadol Online 結論: K 金純度越高,黃金成分越多,顏色越接近純金,但硬度較低;K 值越低,則硬度越高,耐磨性更強。 14K Gold Filled 雖然也有不錯的..."