[KongchangAI]
Unverified85% confidenceFactTime unknown

冷铸铜(树脂+铜粉)与纯铜外观相近但成本低,辨别方法:纯铜掂重明显更沉、敲击有清脆金属声、底部无浇注气孔,冷铸铜手感偏轻且局部可见树脂灰白色断面

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85%
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Long-term
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