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關注：1
2013-05-23 12:21
求翻譯：關于電纜穿樓板的防火封堵是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
關于電纜穿樓板的防火封堵
問題補充： |
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2013-05-23 12:21:38
Cable through the floor on fire blocking
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2013-05-23 12:23:18
The fire stopper on cable wearing 50,730
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2013-05-23 12:24:58
Puts on the floor about the electric cable the fire protection trap
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2013-05-23 12:26:38
On fire prevention of cable wearing floor sealing
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2013-05-23 12:28:18
On fire prevention of cable wearing floor sealing
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