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99足金和999足金区别
更新时间: 2020-11-09 00:00:00  

黄金作为一种贵金属,有良好的物理特性,“真金不怕火炼”就是指一般火焰下黄金不容易熔化。密度大,手感沉甸。韧性和延展性好,良好导性。纯金具有艳丽的黄色,但掺入其他金属后颜色变化较大,如金铜合金呈暗红色,含银合金呈浅黄色或灰白色。金易被磨成粉状,这也是金在自然界中呈分散状的原因,纯金首饰也易被磨损而减少分量。

千足金,999黄金,99黄金都是足金,含金量都是一样的。999金又称千足金,金含量不低于999,990金称足金,金含量不低于990。还有声音的区别,成色高的千足金,掷于地时的声音无韵无弹力,而成色低的纯金音质稍亮。质地的区别,千足金有很好的延展性和硬度小的特点,纯金折而柔软。千足金的印记是印记是"千足金",或"999金"或"G999"等。足金的印记是"足金",或"99金"或"G99"等。由此可见,千足金肯定是足金,但足金则不一定是千足金。

关键词: 足金 区别

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