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API5L X42 Spiral Steel tube Used in oil Line

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  • [Industry News] Spiral steel pipe production technology

    Spiral steel pipe production technology (1) raw materials that is, strip coil, welding wire, flux. They are subjected to strict physical and chemical tests before they are put into use. (2) The butt joint of strip steel head and tail adopts single-wire or double-wire submerged arc welding, and

  • [Industry News] Spiral steel pipe vs seam steel pipe

    Straight seam steel pipes and spiral steel pipes are both a kind of welded steel pipes. They are widely used in national production and construction. Straight seam steel pipes and spiral steel pipes have many differences due to different production processes. The following details will discuss the n

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