[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

管道下水异味和油脂堵塞选含酶(脂肪酶+蛋白酶)的生物型疏通剂,可长期定期使用不伤PVC/PP管道;而含浓硫酸或强碱(NaOH≥30%)的化学疏通剂仅适合急性完全堵塞,频繁使用会老化橡胶密封圈

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82%
Confidence
Long-term
Relevance
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