[国际标准] IEC 61770-2004 Electric appliances connected to the water mains

发表于 2008-4-5 17:51:33 |Error| 显示全部楼层 |阅读模式

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IEC 61770-2004 Electric appliances connected to the water mains-Avoidance of backsiphonage and failure of hose-sets

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