下水道簡單，找勞模挖個坑而已。要不了1k。250camera+50無線電定位(用完送管道工或再賣掉)+材料

來源: 位酷哥於 2023-01-08 15:06:12 [舊帖] [給我悄悄話] 本文已被閱讀：次

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