[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

不同基面需匹配不同底漆:水泥/腻子墙面用抗碱封闭底漆;石膏板接缝需先做防水嵌缝;旧油漆面需打磨拉毛并测试附着力;直接在光滑或粉化基面刷防霉面漆会导致附着力不足、几个月后起皮脱落

1
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80%
Confidence
Long-term
Relevance
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get_claim(id=392262)