数量（m）单价（元/kg）4.084.084.344.344.294.294.344.344.344.344.344.34表面积(m2/m)0.0670.0840.1050.1330.1510.1890.2370.2780.3580.440.5180.688理论质量(kg/m)1.251.632.423.133.844.886.648.3410.8515.0417.8131.52延米单价（元/m）5.106.6510.5013.5816.4720.9428.8236.2047.0965.2777.30136.80面积(m2)0.000.000.000.000.000.000.000.000.000.000.000.00镀锌钢管理论质量(kg/m)1.331.732.573.324.075.177.048.8411.515.9418.88
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