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GB 50015-2019 第3.5.3条 Standard for Design of Building Water Supply and Drainage

Water supply给排水

GB 50015-2019 第3.5.3条

| Water flow velocity in water supply pipes: when nominal diameter DN≤25mm, it should not exceed 1.0m/s; for DN32–DN50, it should not exceed 1.2m/s; for DN≥65, it should not exceed 1.5m/s.

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