8489| 4
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审图提出:水暖竖井也必须做个40X4镀锌扁钢下端与基础接地焊接,进竖井后垂直引上至 |
回复:审图提出:水暖竖井也必须做个40X4镀锌扁钢下端与基础接地焊接,进竖井后垂直
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回复:审图提出:水暖竖井也必须做个40X4镀锌扁钢下端与基础接地焊接,进竖井后垂直
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回复:审图提出:水暖竖井也必须做个40X4镀锌扁钢下端与基础接地焊接,进竖井后垂直
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