Unverified75% confidenceDecision RuleTime unknown
钕铁硼磁体(NdFeB)吸力最强但耐温差、易生锈氧化,洗涤后可能吸力衰减或渗色;带镀层(镍/环氧树脂)封装的磁体耐洗性更好,选购时确认标注可机洗次数≥50次
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