Unverified85% confidenceCautionTime unknown
不要用生料带修补铸铁或镀锌钢管的严重锈蚀漏点,锈蚀点会持续扩大,缠绕只能短期止漏,应更换整段管材
1
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85%
Confidence
Long-term
Relevance
-
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