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China Large Diameter Spiral Steel Pipe/Tube Factory Large diameter spiral steel pipe is a general term,generally refers to the diameter of more than 1 meter spiral steel pipe.The commonly used materials of large-diameter spiral steel pipe in China are Q235A,q235b.q23b,0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb,Q345,L245,china jis g3455 sts 410 carbon steel pipe suppliers 1Cr17 welding,astm a519 grade 1020 supplier.China Large Diameter Spiral Steel Pipe/Tube Factory .Product Details Large diameter spiral steel pipe is a general term,generally refers to the diameter of more than 1 meter spiral steel pipe.The commonly used materials of large diameter spiral steel pipe in China areQ235A,china factory q235b thk 1 4 - Carbon Steel Plate FactoryLarge Diameter Q235B Q345 Spiral Welded Pipe China .China Large Diameter Q235B Q345 Spiral Welded Pipe with High Quality,Leading Large Diameter Q235B Q345 Spiral Welded Pipe Manufacturers Suppliers,find Large Diameter Q235B Q345 Spiral Welded Pipe Factory

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