[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

杆体材质优先PP/PE工程塑料或包胶铁管,避免纯PVC下水管改制的套装——PVC低温脆化易开裂,且劣质PVC含增塑剂,犬只啃咬有健康风险

1
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80%
Confidence
Long-term
Relevance
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