Unverified80% confidenceDecision RuleTime unknown
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
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80%
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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85% 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85% similarUnverified工艺精致度看背面：优质胸针背面同样电镀处理无毛刺，扣针为不锈钢或黄铜（不易生锈），焊点平整无溢胶；镶钻款优选爪镶而非胶粘，胶粘钻半年内易脱落85% similar
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