Unverified80% confidenceTradeoffTime unknown
铝合金支架比钢制轻但同等承重下需更大截面，钢制支架承重更强但更重且易生锈，潮湿环境（浴室/厨房）优先选阳极氧化铝合金或不锈钢
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80%
Confidence
Long-term
Relevance
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Unverified太空铝（铝合金氧化）材质导热慢、天然不生锈、重量轻，适合灶台附近高温高湿环境；304不锈钢强度更高更耐磕碰但价格略高，二者均为厨房挂架优选，铁艺喷漆则为最低耐用度选项87% similarUnverified金属洞洞板分冷轧钢（喷塑防锈、承重强、偏重）和铝合金（轻、防锈好但硬度略低），厨房油烟环境优选喷塑冷轧钢，潮湿阳台可选铝合金86% similarUnverified钢管vs铝合金权衡：钢管承重强、价格低但潮湿环境易在接缝和喷漆磨损处生锈；铝合金防锈耐潮、轻便但同规格承重弱且更贵，浴室/阳台选铝合金或304不锈钢，客厅书房选钢管更划算86% similarUnverified铝合金桌框优于铁质：铝合金抗锈蚀适合潮湿户外且更轻，铁质框架承重更强但户外易生锈、重量大，沿海或多雨地区避免选铁框84% similarUnverified碳钢锋利度高但防锈能力弱，潮湿环境（浴室存放）应选高级不锈钢；不锈钢耐锈但硬度略低需更频繁更换83% similar
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