性欧美videofree教师

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        國標無縫鋼管規格表

         

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        直徑 厚度 管重/米 直徑 厚度 管重/米
        159 4 15.29 820 10 199.75
        5 18.99 12 239.1
        6 22.64 14 278.26
        219 4 21.21 920 8 179.92
        5 26.39 9 202.19
        6 31.52 10 224.41
        7 36.6 12 268.7
        8 41.63 14 312.79
        273 5 33.04 1020 8 199.65
        6 39.51 9 224.38
        7 45.92 10 249.07
        8 52.28 12 298.29
        325 5 39.46 14 347.31
        6 47.2 16 396.14
        7 54.89 18 444.77
        8 62.54 1220 10 298.39
        9 70.13 12 357.47
        10 77.68 14 416.36
        377 6 54.89 16 475.05
        7 63.87 1420 12 416.66
        8 72.8 14 485.41
        9 81.67 16 553.96
        10 90.5 1620 12 475.84
        426 6 62.14 14 554.46
        7 72.33 16 632.87
        8 82.46 18 711.1
        9 92.55 1820 12 535.02
        10 102.59 14 623.5
        480 6 70.13 16 711.79
        7 81.65 18 799.87
        8 93.12 20 887.76
        9 104.53 2020 14 692.55
        10 115.9 16 790.7
        529 7 90.11 18 888.65
        8 102.78 20 986.4
        9 115.41 22 1083.95
        10 127.99 2220 16 869.61
        630 8 122.71 18 977.42
        9 137.82 22 1192.46
        10 152.89 24 1299.68
        720 8 140.46 2420 16 948.52
        9 157.8 18 1066.2
        10 175.09 20 1183.68
        820 8 160.19 22 1300.96
        9 179.99 24 1418.05
         
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        性欧美videofree教师
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