Unverified85% confidenceTradeoffTime unknown
铝合金材质轻便不生锈但硬度低，长期承重易出现杆身永久弯曲；碳钢喷塑硬度高承重强，但喷塑层磕碰破损后内部会生锈，两者不可兼得
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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