Unverified80% confidenceTradeoffTime unknown
铝合金外壳防摔抗压但重量约为ABS的2-3倍，日常口袋携带反而累赘；ABS轻便但抗挤压差，包内易被重物压裂卡槽
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified铝合金支架重量通常150-300g，稳定性好但便携性差；ABS塑料折叠款可做到30-50g适合随身携带，但长期开合易松动导致支撑力下降82% similarUnverified铝框箱抗压密封性优于拉链箱且防撬性强，但空箱自重通常比拉链箱重1.5-2.5kg，且铝框磕碰后凹陷难恢复79% similarUnverified铝合金外壳提供了防盗刷和耐压保护，但整体厚度和重量明显高于纯皮质/布质卡包，裤兜携带有异物感78% similarUnverified铝合金外壳更耐压耐冲击但整箱重量比同容积工程塑料箱重30%-50%，长途徒步/背负携带优先塑料箱，车载运输或固定存放可选铝合金77% similarUnverified铝合金一体成型机身，耐磨抗刮性优于塑料夹，但铝材较薄，受外力挤压（如重物压包底）有变形风险77% similar
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