[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

无膜纯棉/涤纶帐篷、遮阳布可用浸泡型(wash-in)防水剂,成本更低且渗透均匀;带涂层帐篷底布则需专用聚氨酯(PU)防水剂补涂

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