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Spiral welded pipe: The low carbon carbon structural steel or low alloy structural steel strip is rolled into a tube blank according to a certain helix Angle (c···
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Big mouth straight seam welded pipe main production process description.
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Q235 welded steel pipe is carbon structural steel (GB/700-2006) Q235 welded steel pipe, also known as welded pipe, is made of steel plate or strip after curling···
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Galvanized steel wire is 45#, 65#, 70# and other high-quality carbon structural steel drawing, and then galvanized.
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