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zhouqi
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樓主  發(fā)表于: 2015-08-05 23:19
深圳宏電的DTU用了不到2年，今年一檢查95%以上的DTU的三個(gè)指示燈都不亮，電源也正常，不知道怎么回事？是質(zhì)量不行嗎？

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