Unverified80% confidenceDecision RuleTime unknown
金属框架材质需确认为不锈钢（304级）或表面喷塑防锈处理，浴室高湿环境下普通碳钢或劣质电镀件3-6个月即锈蚀，锈蚀后固定螺栓松动导致承重失效
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80%
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Long-term
Relevance
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