[KongchangAI]
Unverified83% confidenceTradeoffTime unknown

全铜防腐蚀寿命长但价高且部分含铅,锌合金便宜造型多样但易腐蚀开裂、寿命通常仅3-5年——预算够优先全铜主水龙头,冷门角阀等可用锌合金省钱

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83%
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