Unverified83% confidenceDecision RuleTime unknown
工艺精细度看背面：好胸针背面焊点平整无毛刺、镶爪均匀包裹宝石、活动部件（如颤枝/弹簧）顺畅；地摊货往往正面光鲜背面焊点粗糙、宝石松动
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83%
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Long-term
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Unverified工艺精细度看背面：优质胸针背面焊点平整无毛刺、镶爪均匀包裹宝石；廉价品常见焊接痕明显、爪镶松动，宝石易掉94% similarUnverified工艺精细度看背面而非正面：好的胸针背面焊点平滑无毛刺、针扣转动顺滑无卡顿、金属边缘打磨圆润；廉价品背面粗糙易勾丝刮伤衣物92% similarUnverified工艺精细度看背面：正品好胸针背面焊点平整、针扣与主体一体成型；廉价品背面焊疤明显、针托用胶水粘接易脱落89% similarUnverified工艺精细度看背面：优质胸针背面焊点平整、无毛刺，针扣与底座连接处为焊接非胶粘；胶粘固定的针扣在拉扯后极易脱落88% similarUnverified工艺精细度看背面：正品做工背面针托焊接平整、无毛刺、有品牌钢印；廉价款背面焊点凸起、有胶水溢出痕迹，长期佩戴易脱落88% similar
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