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GB 50242-2002 第10.2.4条 Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering

Outdoor drainage给排水

GB 50242-2002 第10.2.4条

| **** | Drainage plastic pipes must be installed with expansion joints in accordance with the design requirements and locations. If there are no design requirements, the spacing between expansion joints shall not exceed 4 m. Supports shall be provided at the bottom of drainage risers in high-rise hotels. |

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