[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

切断阀分为内置螺纹阀和外置机械手臂式,内置阀需专业燃气公司上门改管(部分地区强制要求持证操作),外置机械手臂式套在现有球阀上可自行安装但断气可靠性略低

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80%
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Long-term
Relevance
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