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1、螺旋焊鋼管的尺寸、橫截面積、理論質(zhì)量尺寸（mm）橫截面積A（cm²）質(zhì)量（kg/m）dt219.1567833.6140.1546.6253.0326.6131.7836.9141.98244.5567837.6044.9352.2059.4129.7735.5741.3347.0327367850.3058.4766.5739.8246.2952.70323.967859.8969.6579.3547.4155.1462.8232567860.1069.9079.6347.7055.4063.04355.667865.8776.6287.3252.5360.6869.0837767

2、8969.9081.3392.69104.0055.4064.3773.3082.18406.467891075.4487.79100.09112.31124.4759.7569.4579.1088.7098.26 42667891079.1392.10105.00117.84130.6262.6572.8382.9793.05103.09457678910111284.9798.91112.79126.60140.36154.05167.6867.2378.1889.0899.94110.74121.49132.19478678910111288.93103.53118.06132.5414

3、6.95161.30175.5970.3481.8193.23104.60115.92127.19138.41508678910111294.58110.12125.6141.02156.37171.66186.8974.7886.9999.15111.25123.31135.32147.2952967891011121398.53114.74130.88146.95162.97178.92194.81210.6377.8990.61103.29115.92128.49141.02153.50165.93559.0678910111213104.19121.33138.41155.43172.

4、39189.28206.11222.8882.3395.79109.21122.57135.89149.16162.38175.55610.0678910111213113.79132.54151.22169.84188.40206.89225.33243.7089.87104.60119.27133.89148.47162.99177.47191.90630.0678910117.56136.94156.25175.50194.6892.83108.05123.22138.33153.40630.0111213213.80232.86251.86168.42183.39198.31660.0

5、678910111213123.21143.53163.78183.97204.1224.16224.17264.1197.27113.23129.13144.99160.80176.56192.27207.93711.0678910111213132.82154.74176.59198.39220.11241.78263.38284.92104.82122.03139.20156.31173.38190.39207.36224.28720.0678910111213134.52156.72177.85200.93222.94244.89266.77288.60106.15123.59140.

6、97158.31175.60192.84210.02227.16762.07891011121314165.95189.40212.80236.13259.40.282.60305.74328.82130.84149.26167.63185.95204.23222.45240.63258.76813.07891011121314177.16202.22227.21252.41227.01301.82326.56351.24139.64159.32178.95198.53218.06237.55256.98276.36820.078910111213141516178.70203.97229.1

7、9254.34279.43304.45329.42354.32379.16413.93140.85160.70180.50200.26219.96239.62259.22278.78298.29317.75914.08910111213141516227.59255.75283.86311.90339.87367.79395.64423.43451.16179.25201.37223.44245.46267.44289.36311.23333.06354.84920.08910111213141516229.09257.45285.74313.97342.13370.24398.28426.2

8、6454.17180.44202.70224.92247.06269.21291.28313.31335.23357.201020.08910111213141516254.21285.71371.14348.51379.81411.06442.24473.36504.41200.16229.89249.58274.22298.81323.34347.83372.27396.661120.08910111213141516279.33313.97348.54383.05417.49451.88486.20520.46554.65219.89247.09274.24301.35328.40355.40382.36409.26436.121220.010111213141516379.94417.59455.17492.70530.16567.56604.89298.90328.47357

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