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2017-02-08
鋼管廠直銷埋弧焊273*6螺旋鋼管SY5037
2017-02-08
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2017-02-08
廠家直銷河北426*9石油天然氣用GB9711螺旋管
2017-02-08
廠家促銷DN300基礎(chǔ)樁用螺旋鋼管Q235B
2017-02-08
廠家促銷DN250普通流體輸送用螺旋鋼管Q235B
2017-02-08
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2017-02-08
特價供應(yīng)DN900流體SY5037 Q235B螺旋管
2017-02-08
特價供應(yīng)DN1000樁用SY5040 Q235B螺旋管
2017-02-08
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2017-02-08
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