GB 50242-2002 第10.2.4条
| **** | The slope of plastic sanitary sewage pipes must meet design or code requirements (e.g., minimum slope 0.012 for De110, minimum slope 0.015 for De75, etc.); zero slope or reverse slope is strictly prohibited. |
| **** | The slope of plastic sanitary sewage pipes must meet design or code requirements (e.g., minimum slope 0.012 for De110, minimum slope 0.015 for De75, etc.); zero slope or reverse slope is strictly prohibited. |
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