[KongchangAI]
Unverified82% confidenceTradeoffTime unknown

玻璃纤维支架初期成本低但抗紫外线老化差,2-3年后易脆裂分叉;铝合金杆寿命通常5-8年且可维修,长期使用铝杆综合成本更低

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82%
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Long-term
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