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1420螺旋鋼管
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名稱 規格(直徑*壁厚) 材質 長度(米) 標準 理論重量(Kg/米) 單價(元/噸)
1420*7螺旋鋼管 1420*7mm Q235B 12 國標 243.91Kg/米 4250元/噸
1420*12螺旋鋼管 1420*12mm Q235B 12 國標 416.655Kg/米 4650元/噸
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