18R409 管道穿墙 屋面防水套管 [课程编码222]

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通常工程中，DN65工作管的套管选DN100，DN80工作管的套管选DN125msutbmuxsm

DN40的冷凝水管道（外径45mm），保温25mm，保温外径95mm，套管留DN100即可

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18R409 管道穿墙 屋面防水套管

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18R409 管道穿墙 屋面防水套管

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注意：kmsirmtbukiqonkuxyxpkdmdwjigd

关于刚性防水套管的尺寸范围：gddncnxjzbsiafepdqijtxgmrpgdbetpmozklzf

本图集（18R409）上有穿管尺寸DN50以下的套管：

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而图集（02S404）上套管的最小穿管尺寸为DN50，以下的没有：kobirimjomufitwemqxrnswcgyjedjkozidqrophxoinscu

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