Unverified88% confidenceDecision RuleTime unknown

日常高频佩戴选18K金而非足金(24K)，足金硬度仅2.5莫氏度极易变形磨损、链身易断；18K金硬度约4，含25%其他金属更耐拉扯

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88%

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Unverified镀金（镀真金）与包金（K金层≥10K且厚度≥1/20）耐磨度差异大：镀金层通常＜0.5微米，日常摩擦1-2年易露底色；预算够选18K金实心或包金款更耐久79% similar Unverified金属（钢/铝合金）架承重普遍15-30kg适合放主机+多手柄，木质MDF架承重多在8-15kg，亚克力架承重最弱通常＜5kg仅适合摆件展示76% similar

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