[KongchangAI]
Unverified75% confidenceCautionTime unknown

老式甲级防盗门(20年以上)钢板可能锈蚀变薄,加装厚重加固件会加剧门体变形和下沉,此情况建议整门更换而非局部加固

1
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75%
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Long-term
Relevance
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