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                自来水厂滤池 water filter 自来水厂过滤池

                常规滤料(mm)            滤过砂            0.4-0.8     0.5-1.0        0.5-1.2   0.8-1.2     0.6-1.2     0.95-1.35      1-2                         
                       

                 承托层砾石(mm)         2-4          4-8            8-16       16-32          32-64