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GB 50242-2002 第10.2.9条 Code for acceptance of construction quality of building water supply, drainage and heating engineering

Indoor drainage给排水

GB 50242-2002 第10.2.9条

| **** | The vent pipe must not be connected to an air duct or flue, and shall comply with the following requirements: the vent pipe shall extend at least 300 mm above the roof and must exceed the maximum snow depth; on flat roofs where people frequently stay, the vent pipe shall extend at least 2 m above the roof. |

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