公称直径（毫米）镀锌钢管焊接钢管无缝钢管给水铸铁管排水铸铁管排水塑料管铜管0.190.20.210.220.230.160.160.250.27150.470.470.47200.470.470.47250.490.490.49320.550.550.55400.580.580.58500.580.580.58700.480.480.48800.50.50.50.870.160.160.31000.60.60.60.870.210.210.371250.690.690.691.190.211500.820.821.191.40.270.271.41.720.271.622.150.321.83200250300合计0350400450小计002.262.6800000000
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