[KongchangAI]
Unverified75% confidenceCautionTime unknown

老房有石棉水泥或金属老化管道时不建议用强腐蚀化学疏通剂,腐蚀可能加速管道穿孔漏水,优先物理疏通(弹簧钻/管道机)

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Long-term
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