Unverified80% confidenceDecision RuleTime unknown
判断工艺质量看背面：正规产品背面焊点平整无毛刺、别针开合顺畅有弹性回位、镶石处爪镶牢固无松动；廉价品常见焊接溢胶、别针松垮
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80%
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Long-term
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Unverified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90% similarUnverified工艺精细度看背面处理：正品/高工背面同样打磨光滑、焊点均匀、针扣与底座衔接无缝隙；廉价品背面粗糙、有毛刺、焊点堆积，易勾坏衣物内衬88% similarUnverified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87% similarUnverified工艺精细度看焊点与镶嵌：优质胸针背面焊点平滑无毛刺、爪镶宝石逐颗独立固定不松动；廉价品多用胶粘钻(glue-set)，遇高温或碰撞易脱落，可轻摇听是否有响声判断85% 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85% similar
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