[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

铝合金横杆比钢制轻30%-40%、抗腐蚀好适合沿海潮湿环境,但同规格承重略低于钢制;沿海/多雨地区优先铝合金,追求极限承重选钢制并注意镀锌层维护

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80%
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Long-term
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