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          圓鋼規格:Φ3—Φ400

          圓鋼分類:普通圓鋼 碳結圓鋼 低合金圓鋼 合結圓鋼 冷拉圓鋼

          材質:Q235B  Q345B  45#  A3  10#  20#  35#



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