Unverified80% confidenceCautionTime unknown
带存水弯（S弯/P弯）的洗手盆和马桶不建议用硬质长弹簧强行推送，弹簧在弯道易打结或划伤陶瓷/PVC内壁，此类场景优选气压式或短软弹簧
1
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80%
Confidence
Long-term
Relevance
-
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