无码av动漫精品一区二区免费

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KYN28A-12鎧裝移開式封閉開關設備
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KYN28A-12型戶內交流金屬鎧裝中置式開關設備。它適用于三相交流額定電壓12kV,額定頻率50Hz電力系統,用于接受和分配電能并對電路實行控制、保護及監測。

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无码av动漫精品一区二区免费