[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

缝隙宽度>3mm建议用环氧彩砂或加砂型填缝剂,纯环氧(无砂)适合1-2mm细缝;缝宽超过5mm不建议美缝,应先做窄缝处理

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