合肥Q235b无缝矩形管快发方管150*100*12方矩管化工用
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合肥q460高强度方管Q355b无缝矩形管300x200x16方管冲孔拉弯加工
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合肥320x200x12Q345B厚壁方管价格机械制造用价格制造厂
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合肥100x100x8Q355B塔机方管价格机场建设用采购合理价
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合肥Q345B无缝方管华坤100x75x4方管诚信厂家
¥4000
合肥20#无缝方管华坤220x220x6方管量大优惠
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合肥厚壁无缝方管华坤200x150x12方管种类多
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合肥低合金方管华坤300x100x5方管钢管
¥4000
合肥厚壁无缝方管华坤100x100x6.3方管定做周期短
¥4000
合肥厚壁无缝方管华坤340x200x10方管物流方便
¥4000