螺旋焊管
4.611 247.22 4.3 3.4 8 82.97 6.8 5.3 12 269.21 4.7 3.7 9 93.05 7.6 6.0 1020 8 200.16 2.8 2.2 10 103.09 8.5 6.7 9 224.89 3.2 2.5 478 6 70.34 4.5 3.5 10 249.58 3.5 2.8 7 81.81 5.3 4.1 11 274.22 3.9 3.0 8 93.23 6.0 4.7 12 298.81 4.2 3.3 9 104.60 6.8 5.3 1220 8 239.62 - 1.8 10 115.92 7.5 5.9 10 298.90 3.0 2.3 529 6 77.89 4.1 3.2 11 328.47 3.2 2.5 7 90.61 4.8 3.7 12 357.99 3.5 2.8 8 103.29 5.4 4.3 13 387.46 3.8 3.0 9 115.92 6.1 4.8 1420 10 348.23 2.8





