[KongchangAI]
Unverified80% confidenceSolutionTime unknown

大面积墙板改造标准路径:先测墙面平整度与含水率→潮湿区选防水材质→确定环保等级→根据平整度选安装方式(龙骨/背胶)→留伸缩缝(每2-3m预留2-3mm防热胀冷缩起拱)

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