Unverified85% confidenceFactTime unknown

皮质名片夹的做工判断关键在封边和车线：优质品边缘为手工封边（涂胶打磨着色）而非切边翻折，车线间距均匀无跳线、缝线不外露松散

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Unverified复古包内衬和车缝线做工是辨别品质关键：优质款采用手工蜡线双针缝（线迹均匀、结头藏于内部），廉价款为机器直线单针缝且线头外露；边油（皮边封漆）应平滑无开裂，粗糙起皮说明工艺和皮质等级低80% similar Unverified选购时检查拼接处的走线：正规工艺应有拷边/包缝处理，拼接缝内侧平整无毛边；缝合处若能透光看到缝隙或车线歪斜，说明做工差，穿几次就会开线79% similar Unverified分装格边角与提手加固缝线（回字缝/加厚织带）决定负重上限，装满衣物提拿时受力集中在提手，无加固款易脱线；选购时检查提手根部缝合工艺77% similar

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